Integer Overflow or Wraparound in GitLab
Affects GitLab CE/EE 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 when a specially crafted regular expression is compiled in a CI/CD configuration. Fixed in 19.2.7, 19.3.3, and 19.4.1.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Fix
- Fixed in 19.2.7, 19.3.3, 19.4.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
GitLab Community Edition and Enterprise Edition are affected by this vulnerability. An authenticated user could potentially run arbitrary code on the GitLab server by submitting a specially crafted regular expression in a CI/CD configuration.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary code on the GitLab server due to an integer overflow issue when compiling a specially crafted regular expression in a CI/CD configuration.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- GitLab GitLab
From 19.2 · fixed in 19.2.7; From 19.3 · fixed in 19.3.3; From 19.4 · fixed in 19.4.1
- gitlabBitnami
From 19.2.0 · fixed in 19.2.7; From 19.3.0 · fixed in 19.3.3; From 19.4.0 · fixed in 19.4.1
References 3
gitlab.com
hackerone.com
docs.gitlab.com
Questions about CVE-2026-93577
What does this mean?
A integer overflow occurs when GitLab compiles a specially crafted regular expression in a CI/CD configuration. The advisory says this could let an authenticated user execute arbitrary code on the GitLab server.Source: docs.gitlab.com
Am I affected, and how do I check?
GitLab CE and EE versions 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 are covered. The setup involves a CI/CD configuration that compiles a regular expression. Compare the installed GitLab version against these ranges.Source: docs.gitlab.com
What should I do about it?
Upgrade to 19.2.7, 19.3.3, or 19.4.1, matching the release line in use.Source: docs.gitlab.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data