CVE-2026-33945

criticalPriorität · verfolgen · 38EPSS 0.005 · 39. PerzentilDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.46% (39th) EPSS
CVSS 9.6 · critical
Is it mine?
9 products
Prüfe deine Angriffsfläche
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · bewertet 2026-10-28

Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an attacker can set a configuration key named something like `systemd.credential.../../../../../../root/.bashrc` to cause Incus to write outside of the `credentials` directory associated with the container. This makes use of the fact that the Incus syntax for such credentials is `systemd.credential.XYZ` where `XYZ` can itself contain more periods. While it's not possible to read any data this way, it's possible to write to arbitrary files as root, enabling both privilege escalation and denial of service attacks. Version 6.23.0 fixes the issue.

01

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

  • Behobenincus-0:6.23-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-0:6.23-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-0:6.23-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-0:6.23-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-bash-completion-0:6.23-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-bash-completion-0:6.23-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-bash-completion-0:6.23-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-bash-completion-0:6.23-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-fish-completion-0:6.23-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-fish-completion-0:6.23-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-fish-completion-0:6.23-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-fish-completion-0:6.23-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-tools-0:6.23-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-tools-0:6.23-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-tools-0:6.23-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-tools-0:6.23-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-zsh-completion-0:6.23-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-zsh-completion-0:6.23-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-zsh-completion-0:6.23-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf

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

  • Behobenincus-zsh-completion-0:6.23-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

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

02

cvss

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

10.0
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 8.8–10

v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.1 · Auswirkung 5.8
v3.19.6criticalAV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · security-advisories@github.comAusnutzbarkeit 3.1 · Auswirkung 6
v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · OSV
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.18.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · SUSE Product Security
03

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-22USCWE-22USCWE-22US
05

betroffene Produkte (9)

Betroffene Produkte und Versionsbereiche.

06

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

  • openSUSE-SU-2026:10450-1incus-6.23-1.1 on GA media2026-03-28csaf · suse_csafDE

    incus-6.23-1.1 on GA media

  • GHSA-q4q8-7f2j-9h9fIncus has an abitrary file write through its systemd-creds options2026-03-27ghsa · osvUS

    ### Summary Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. An attacker can use the name of a systemd credential to escape that directory and overwrite arbitrary files on the host system. This can in turn be used to perform local privilege escalation or cause a DoS. ### Details An attacker can set a configuration key named something like `systemd.credential.../../../../../../root/.bashrc` to cause Incus to write outside of the `credentials` directory associated with the container. This makes use of the fact that the Incus syntax for such credentials is `systemd.credential.XYZ` where `XYZ` can itself contain more periods. While it's not possible to read any data this way, it's possible to write to arbitrary files as root, enabling both privilege escalation and denial of service attacks. ### Credit This issue was discovered and reported by the team at [7asecurity](https://7asecurity.com/)

  • GO-2026-4884Incus has an abitrary file write through its systemd-creds options in github.com/lxc/incus2026-04-07vendor · osvUS

    Incus has an abitrary file write through its systemd-creds options in github.com/lxc/incus

07

auch bekannt als (5)

Weitere Namen und Kennungen dieser Entität.

08

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bduosvnvdsuse_csafNVDCVE.orgMITRE
veröffentlicht 2026-03-27geändert 2026-06-17
09

Referenzen (4)

Externe Belege — Patches, Meldungen, Analysen.

scry

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