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CVE-2021-22205 CISA KEV · Actively exploitedLinked to ransomwareSuited to automated attack · CISA

Vulnerability in GitLab

CVSS score

10.0

EPSS probability

%99.7

Risk score

19.9

Published

5 y ago

OverviewPublic Exploits (9)NewsroomVulnerability Timeline
Mitigation available

Apply updates per vendor instructions.

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

GitLab CVE-2021-22205: Remote Code Execution via Image File Parsing Vulnerability

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%58

Short explanation

CVE-2021-22205 enables remote code execution in GitLab CE/EE versions from 11.9.0 to 13.10.3 due to improper image file validation. The vulnerability is actively exploited and patch status is UNKNOWN. Remediation requires upgrading to GitLab 13.10.4 or later.

Why does it matter?

This vulnerability allows attackers to execute arbitrary commands on GitLab instances, leading to full system compromise. Its presence in the KEV catalog indicates active exploitation, increasing risk to organizations using affected versions.

What should be done?

  • Upgrade to GitLab 13.10.4 or later to mitigate the vulnerability
  • Ensure patching follows official GitLab release notes
  • Validate image uploads with secure file parsers
Note on uncertainty

The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.

Chain of evidence and sources3 verified claims

CVE-2021-22205, GitLab CE/EE sürüm 11.9.0'dan itibaren 13.8.8, 13.9.0'dan itibaren 13.9.6 ve 13.10.0'dan itibaren 13.10.3'e kadar olan sürümlerde, görüntü dosyalarının bir dosya analizcisiye geçmesi sırasında yanlış doğrulandığı için uzak komut yürütme izini sağlar.

S0 · daybreach-canonical

Ele geçirme, CISA'nın Bilinen Ele geçirilen Kaynaklar (KEV) kataloğunda doğrulandı.

S0 · daybreach-canonical

Yama durumu bilinmiyor çünkü resmî kaynaklarda güvenilir bilgi yoktur; resmi bir düzeltme sürümü doğrulanmamıştır.

S0 · daybreach-canonical
Show the technical text from the sources

An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.9. GitLab was not properly validating image files that were passed to a file parser which resulted in a remote command execution.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE: CWE-94

Explanation produced with the local qwen3:4b-instruct model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2021-22205 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1gitlabgitlab View
2gitlabgitlab View
3gitlabgitlab View
4gitlabgitlab View
Total affected vendors: 1|Products: 4

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
10.0CVSS V31CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HNVD
10.0CVSS V3_1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HCVE CNA
7.5CVSS V2—AV:N/AC:L/Au:N/C:P/I:P/A:PNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Workaround

Resmî yama doğrulanamadı; geçici azaltım veya workaround mevcut.

canonical

Apply updates per vendor instructions.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

CVE-2021-22205 : the database holds 9 public PoC/exploit sources for it. For direct links to the sources, open the Public Exploits tab.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-22205 is associated with the following CWEs:

CWE-94: Improper Control of Generation of Code ('Code Injection')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-22205 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://hackerone.com/reports/1154542vendor-advisoryhttps://gitlab.com/gitlab-org/gitlab/-/issues/327121vendor-advisoryhttps://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22205.jsonvendor-advisoryhttp://packetstormsecurity.com/files/164768/GitLab-Unauthenticated-Remote-ExifTool-Command-Injection.htmlvendor-advisoryhttp://packetstormsecurity.com/files/164994/GitLab-13.10.2-Remote-Code-Execution.htmlvendor-advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22205nvdCISA Known Exploited Vulnerabilities Catalogkev

CVSS Vector Radar Chart

10.0 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Geçici çözüm

Resmî yama doğrulanamadı; geçici azaltım veya workaround mevcut.

Follow the vendor

G
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gitlab

Weakness Type (CWE & CAPEC)

CWE-94

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