GitLab up to 19.2.6/19.3.2/19.4.0 Regular Expression Compilation integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k1.45+

Summaryinfo

A vulnerability was found in GitLab up to 19.2.6/19.3.2/19.4.0. It has been declared as critical. This affects an unknown part of the component Regular Expression Compilation. Such manipulation leads to integer overflow. This vulnerability is listed as CVE-2026-93577. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in GitLab up to 19.2.6/19.3.2/19.4.0. Affected by this issue is some unknown processing of the component Regular Expression Compilation. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at gitlab.com. This vulnerability is handled as CVE-2026-93577 since 09/18/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 19.2.7, 19.3.3 or 19.4.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.9
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: GitLab 19.2.7/19.3.3/19.4.1

Timelineinfo

09/18/2026 CVE reserved
09/23/2026 +5 days VulDB entry created
09/24/2026 +0 days Advisory disclosed
09/24/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gitlab.com
Status: Confirmed

CVE: CVE-2026-93577 (🔒)
GCVE (CVE): GCVE-0-2026-93577
GCVE (VulDB): GCVE-100-409268

Entryinfo

Created: 09/24/2026 01:41
Changes: 09/24/2026 01:41 (63)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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