CVE-2026-4177

criticalPriorität · verfolgen · 0EPSS 0.004 · 39. PerzentilDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.45% (39th) EPSS
CVSS 9.1 · critical
Is it mine?
43 products
Prüfe deine Angriffsfläche
Who says so?
5 sources
cnnvd · enisa_euvd · cert_bund · suse_csaf

EPSS · bewertet 2026-10-27

YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter. The heap overflow occurs when class names exceed the initial 512-byte allocation. The base64 decoder could read past the buffer end on trailing newlines. strtok mutated n->type_id in place, corrupting shared node data. A memory leak occurred in syck_hdlr_add_anchor when a node already had an anchor. The incoming anchor string 'a' was leaked on early return.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

  • Behobenperl-YAML-Syck-0:1.30-6.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Behobenperl-YAML-Syck-0:1.30-6.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-0:1.30-6.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-0:1.30-6.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-0:1.30-6.el8_10.src as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-0:1.30-6.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debugsource-0:1.30-6.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debugsource-0:1.30-6.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debugsource-0:1.30-6.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-debugsource-0:1.30-6.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:6470
  • Behobenperl-YAML-Syck-0:1.27-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-0:1.27-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-0:1.27-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-0:1.27-3.el7_9.1.src as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-0:1.27-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Behobenperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2026:8311
  • Workaroundperl-YAML-Syck-0:1.30-6.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.30-6.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.30-6.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.30-6.el8_10.src as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.30-6.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.30-6.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debugsource-0:1.30-6.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debugsource-0:1.30-6.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debugsource-0:1.30-6.el8_10.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debugsource-0:1.30-6.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.27-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.27-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.27-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.27-3.el7_9.1.src as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-0:1.27-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

  • Workaroundperl-YAML-Syck-debuginfo-0:1.27-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)redhat_csaf

    Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.1
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 7.3–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · ENISA EU
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HsecondaryAusnutzbarkeit 3.9 · Auswirkung 5.2
v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LsecondaryAusnutzbarkeit 3.9 · Auswirkung 3.4
v3.17.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · Red Hat Product Security US
03

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-120USCWE-120USCWE-122US
05

betroffene Produkte (43)

Betroffene Produkte und Versionsbereiche.

20 von 43 angezeigt
06

Advisories (4)

Hersteller- und Ökosystem-Meldungen dazu.

  • RHSA-2026:6470security update for perl-YAML-Syck2026-04-02csaf · suse_csafDE

    security update for perl-YAML-Syck

  • RHSA-2026:6470Red Hat Security Advisory: perl-YAML-Syck security update2026-04-02csaf · redhat_csafUS

    An update for perl-YAML-Syck is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • RHSA-2026:8311Red Hat Security Advisory: perl-YAML-Syck security update2026-04-15csaf · redhat_csafUS

    An update for perl-YAML-Syck is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • WID-SEC-W-2026-0939cPanel cPanel/WHM (perl-YAML-Syck): Schwachstelle ermöglicht Codeausführung und DoSDeutsch2026-03-31csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in cPanel cPanel/WHM ausnutzen, um potenziell beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.

07

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

08

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdcert_bundsuse_csafredhat_csafNVDCVE.orgMITRE
veröffentlicht 2026-03-16geändert 2026-07-15
09

Referenzen (14)

Externe Belege — Patches, Meldungen, Analysen.

scry

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