How severe is GHSA-4r67-4x4p-fprg?

GHSA-4r67-4x4p-fprg has a CVSS score of 4.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-4r67-4x4p-fprg?

GHSA-4r67-4x4p-fprg affects the following packages: github.com/mattermost/mattermost/server/v8 (Go), github.com/mattermost/mattermost-server (Go), github.com/mattermost/mattermost-server (Go), github.com/mattermost/mattermost-server (Go), github.com/mattermost/mattermost-server (Go). Ecosystems affected: Go.

How do I fix GHSA-4r67-4x4p-fprg?

Update github.com/mattermost/mattermost/server/v8 to 8.0.0-20250414112942-77892234944b or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4r67-4x4p-fprg is resolved across your whole dependency graph.

How do I detect GHSA-4r67-4x4p-fprg in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/mattermost/mattermost/server/v8, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-4r67-4x4p-fprg if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is GHSA-4r67-4x4p-fprg actively exploited in the wild?

No public exploit code has been indexed for GHSA-4r67-4x4p-fprg yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-4r67-4x4p-fprg?

GHSA-4r67-4x4p-fprg has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 20th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-4r67-4x4p-fprg?

GHSA-4r67-4x4p-fprg is classified as CWE-90 (CWE-90). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-4r67-4x4p-fprg published, and has it been updated?

GHSA-4r67-4x4p-fprg was published on June 11, 2025 and was last updated on June 11, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹

🐹 Go

Not in CISA KEV

MEDIUM severity

Mattermost allows authenticated administrator to execute LDAP search filter injectionGHSA-4r67-4x4p-fprg

MEDIUMFix: mattermost/mattermost@1f9c688

GHSA-4r67-4x4p-fprg is a medium-severity (CVSS 4.1) CWE-90 vulnerability in github.com/mattermost/mattermost/server/v8. A fix is available for github.com/mattermost/mattermost/server/v8 — see the affected versions and patch details below.

Also known asCVE-2025-4573GO-2025-3756

Published

Jun 11, 2025

Updated

Jun 11, 2025

Affected

5 pkgs

Patched

5 / 5

Exploits

None indexed

Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-4r67-4x4p-fprg.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs20th percentile — riskier than 20% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

5 pkgs affected

🐹github.com/mattermost/mattermost/server/v8🐹github.com/mattermost/mattermost-server🐹github.com/mattermost/mattermost-server🐹github.com/mattermost/mattermost-server🐹github.com/mattermost/mattermost-server

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Mattermost versions 10.7.x <= 10.7.1, 10.6.x <= 10.6.3, 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly validate LDAP group ID attributes, allowing an authenticated administrator with PermissionSysconsoleWriteUserManagementGroups permission to execute LDAP search filter injection via the PUT /api/v4/ldap/groups/{remote_id}/link API when objectGUID is configured as the Group ID Attribute.

Affected Packages

5 total 5 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/mattermost/mattermost/server/v8`	all versions	8.0.0-20250414112942-77892234944b`go get github.com/mattermost/mattermost/server/v8@v8.0.0-20250414112942-77892234944b`
🐹Go	`github.com/mattermost/mattermost-server`	≥ 10.7.0&&< 10.7.2	10.7.2`go get github.com/mattermost/mattermost-server@v10.7.2`
🐹Go	`github.com/mattermost/mattermost-server`	≥ 10.6.0&&< 10.6.4	10.6.4`go get github.com/mattermost/mattermost-server@v10.6.4`
🐹Go	`github.com/mattermost/mattermost-server`	≥ 10.5.0&&< 10.5.5	10.5.5`go get github.com/mattermost/mattermost-server@v10.5.5`
🐹Go	`github.com/mattermost/mattermost-server`	≥ 9.11.0&&< 9.11.14	9.11.14`go get github.com/mattermost/mattermost-server@v9.11.14`

Affected Products

1 product · 4 configurations

Application

mattermost servermattermost

≥ 10.7.0 && < 10.7.2

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/mattermost/mattermost/server/v8, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/mattermost/mattermost/server/v8 to 8.0.0-20250414112942-77892234944b or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4r67-4x4p-fprg is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is GHSA-4r67-4x4p-fprg in your dependencies?

Find it across Go, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

4.1/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

CWE Classification

CWE-90CWE-90

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

OpenSSF Scorecard

Package health score

mattermost

7.3/10

Maintained10/10

Code-Review10/10

Dependency-Update-Tool10/10

Branch-Protection4/10

Vulnerabilities0/10

Assessed Nov 5, 2026

Timeline

Disclosed

Jun 11, 2025

Identifiers

GHSA-4r67-4x4p-fprg

GO-2025-3756

References

Advisorynvd.nist.gov · CVE 2025 4573 Webgithub.com · 1f9c688a30847eeb7bfb1574dc7bbb9f011afbf7 Webgithub.com · 64a65c6107877382040297b3ef215c689caaed74 Webgithub.com · 77892234944bc7476b20794e516538bcac717de9 Webgithub.com · b33926709b956a59558cc7fef80c0e75a769ce81 Webgithub.com · b47e89c4f98cb6ad9f1dceb79325aa94e80f963a Webmattermost.com · security updates Packagegithub.com · mattermost

Related vulnerabilities

This CVE is medium severity; 7 of 8 other CVEs affecting v8 are rated as high or higher (top: high).

CVE-2026-8823CVE-2026-6046CVE-2026-7387CVE-2026-6961CVE-2026-7184CVE-2026-6689CVE-2026-6739CVE-2026-3433

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedJun 11, 2025

Mattermost allows authenticated administrator to execute LDAP search filter injectionGHSA-4r67-4x4p-fprg

Exploitation Status

No confirmed exploitation observed yet

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is GHSA-4r67-4x4p-fprg in your dependencies?