GitLab Community Edition/Enterprise Edition up to 18.8.3 File improper validation of unsafe equivalence in input

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in GitLab Community Edition and Enterprise Edition up to 18.8.3. This impacts an unknown function of the component File Handler. Such manipulation leads to improper validation of unsafe equivalence in input. This vulnerability is traded as CVE-2026-1094. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 18.8.3. It has been rated as problematic. Affected by this issue is an unknown function of the component File Handler. The manipulation with an unknown input leads to a improper validation of unsafe equivalence in input vulnerability. Using CWE to declare the problem leads to CWE-1289. The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value. Impacted is confidentiality, integrity, and availability. CVE summarizes:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.8 before 18.8.4 that could have allowed an authenticated developer to hide specially crafted file changes from the WebUI.

The weakness was shared by u3mur4. The advisory is shared for download at gitlab.com. This vulnerability is handled as CVE-2026-1094 since 01/16/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 298866 (GitLab 18.8 < 18.8.4 (CVE-2026-1094)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.8.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (298866). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.6
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper validation of unsafe equivalence in input
CWE: CWE-1289 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 298866
Nessus Name: GitLab 18.8 < 18.8.4 (CVE-2026-1094)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.8.4

Timelineinfo

01/16/2026 CVE reserved
02/11/2026 +26 days Advisory disclosed
02/11/2026 +0 days VulDB entry created
02/13/2026 +2 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: gitlab.com
Researcher: u3mur4
Status: Confirmed

CVE: CVE-2026-1094 (🔒)
GCVE (CVE): GCVE-0-2026-1094
GCVE (VulDB): GCVE-100-345464

Entryinfo

Created: 02/11/2026 13:14
Updated: 02/13/2026 12:20
Changes: 02/11/2026 13:14 (65), 02/13/2026 12:20 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!