Gogs up to 0.14.2 ChangeCollaborationAccessMode off-by-one

CVSS Meta Temp Score
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Gogs up to 0.14.2. Affected by this vulnerability is the function ChangeCollaborationAccessMode. Executing a manipulation can lead to off-by-one. This vulnerability appears as CVE-2026-52804. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Gogs up to 0.14.2 and classified as problematic. This vulnerability affects the function ChangeCollaborationAccessMode. The manipulation with an unknown input leads to a off-by-one vulnerability. The CWE definition for the vulnerability is CWE-193. A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value. As an impact it is known to affect integrity, and availability. CVE summarizes:

Gogs is an open source self-hosted Git service. Prior to 0.14.3, a repository admin collaborator can escalate their privileges to owner-level access by exploiting an off-by-one error in the ChangeCollaborationAccessMode function. This vulnerability is fixed in 0.14.3.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-52804 since 06/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. There are known technical details, but no exploit is available.

It is declared as proof-of-concept.

Upgrading to version 0.14.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 1fdc9cc28e159135cfa4d6b11ecd5daa0f8ce22b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.8
VulDB Temp Score: 3.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Off-by-one
CWE: CWE-193 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Proof-of-Concept
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: Gogs 0.14.3
Patch: 1fdc9cc28e159135cfa4d6b11ecd5daa0f8ce22b

Timelineinfo

06/08/2026 CVE reserved
06/25/2026 +17 days Advisory disclosed
06/25/2026 +0 days VulDB entry created
06/25/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-4565-r4x7-hg8j
Status: Confirmed

CVE: CVE-2026-52804 (🔒)
GCVE (CVE): GCVE-0-2026-52804
GCVE (VulDB): GCVE-100-373648

Entryinfo

Created: 06/25/2026 06:33
Changes: 06/25/2026 06:33 (70)
Complete: 🔍
Cache ID: 216::103

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