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PatchSiren cyber security CVE debrief

CVE-2021-22205 GitLab CVE debrief

CVE-2021-22205 is a GitLab Community and Enterprise Editions remote code execution vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2021-11-03. Because CISA also marks the issue as having known ransomware campaign use, it should be treated as an immediate patching priority for any affected GitLab deployment.

Vendor
GitLab
Product
Community and Enterprise Editions
CVSS
CRITICAL 10
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Organizations running GitLab Community and Enterprise Editions, especially teams that manage self-hosted, internet-facing, or production GitLab instances; also security, platform, and IT operations teams responsible for patching and exposure management.

Technical summary

The supplied records identify CVE-2021-22205 as a remote code execution vulnerability in GitLab Community and Enterprise Editions. The official CISA KEV entry confirms it as known exploited and directs defenders to apply vendor updates, but the supplied corpus does not include affected version ranges or detailed exploit conditions.

Defensive priority

Critical / immediate. CISA has placed this CVE in KEV and marked known ransomware campaign use, so remediation should be expedited according to vendor guidance.

Recommended defensive actions

  • Apply the vendor-recommended update path as soon as possible.
  • Inventory all GitLab Community and Enterprise Editions deployments, including self-managed instances and any externally reachable systems.
  • Verify whether any deployed GitLab systems are listed against the official CVE and NVD records for additional remediation detail.
  • Prioritize patching for production, internet-facing, and code-hosting environments.
  • Confirm remediation before the CISA KEV due date context supplied with the record: 2021-11-17.

Evidence notes

CISA KEV lists the vulnerability as "GitLab Community and Enterprise Editions Remote Code Execution Vulnerability," with dateAdded 2021-11-03, dueDate 2021-11-17, knownRansomwareCampaignUse marked "Known," and requiredAction "Apply updates per vendor instructions." The supplied official links include the CVE record, NVD detail page, and CISA KEV catalog entry; no affected-version range was present in the supplied corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2021-22205 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2021-22205

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2021-22205 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2021-22205

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.