CVE-2021-27919

mediumpriority · track · 23EPSS 0.015 · 74 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.52% (74th) EPSS

CVSS 4.3 · medium

Is it mine?

29 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

archive/zip in Go 1.16.x before 1.16.1 allows attackers to cause a denial of service (panic) upon attempted use of the Reader.Open API for a ZIP archive in which ../ occurs at the beginning of any filename.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USLLM-inferredCWE-400USLLM-inferred

affected products (29)

Products and version ranges known to be affected.

Atlassian Confluence <10.0.2all versionscert_bundDE
Atlassian Confluence <10.1.1all versionscert_bundDE
Atlassian Confluence <8.5.25all versionscert_bundDE
Atlassian Confluence <9.2.7all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Splunk Splunk Enterpriseall versionscert_bundDEcpe:/a:splunk:splunk:-
Splunk Splunk Enterprise <8.2.12all versionscert_bundDE
Splunk Splunk Enterprise <9.0.6all versionscert_bundDE
Splunk Splunk Enterprise <9.0.9all versionscert_bundDE
Splunk Splunk Enterprise <9.1.1all versionscert_bundDE
Splunk Splunk Enterprise <9.1.4all versionscert_bundDE
Splunk Splunk Enterprise <9.2.1all versionscert_bundDE
Atlassian Confluence< 10.0.2cert_bundDE
Atlassian Confluence< 10.1.1cert_bundDE
Atlassian Confluence< 8.5.25cert_bundDE
Atlassian Confluence< 9.2.7cert_bundDE
Splunk Splunk Enterprise< 8.2.12cert_bundDE
Splunk Splunk Enterprise< 9.0.6cert_bundDE
Splunk Splunk Enterprise< 9.0.9cert_bundDE

showing 20 of 29

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2229Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2023-08-30csaf · cert_bundDE
Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, einen 'Denial of Service'-Zustand zu verursachen, seine Privilegien zu erweitern und weitere, nicht spezifizierte Auswirkungen zu verursachen.
BIT-golang-2021-279192024-03-06vendor · osvUS
archive/zip in Go 1.16.x before 1.16.1 allows attackers to cause a denial of service (panic) upon attempted use of the Reader.Open API for a ZIP archive in which ../ occurs at the beginning of any filename.
GO-2021-0067Panic when opening archives in archive/zip2021-04-14vendor · osvUS
Using Reader.Open on an archive containing a file with a path prefixed by "../" will cause a panic due to a stack overflow. If parsing user supplied archives, this may be used as a denial of service vector.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund NVD CVE.org MITRE

published 2021-03-11modified 2026-06-17

references (18)

External citations — patches, advisories, analysis.

scry

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