CVE-2025-62690 json
Open redirect in error page when link opened in new tab
published 2025-12-17 10 mo ago modified 2026-10-13 27 d ago also GHSA-q66g-q98c-q454 , GO-2025-4248 , EUVD-2025-203890
- cvss
- 3.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
Mattermost versions 10.11.x <= 10.11.4 fail to validate redirect URLs on the /error page, which allows an attacker to redirect a victim to a malicious site via a crafted link opened in a new tab.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 8.0.0-20251016131338-dad6bd7a1509
- go github.com/mattermost/mattermost 10.11.5-0.20251016131338-dad6bd7a1509, 11.1.0, 11.1.0+incompatible
- Mattermost Mattermost 10.11.5, 11.1.0
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260114T191543-150000.1.137.1
suse advisories SUSE-SU-2026:0142-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 10 mo ago
Exploit prediction
0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | >=8.0.0-20250721062209-4952acea88ce, <8.0.0-20251016131338-dad6bd7a1509 |
8.0.0-20251016131338-dad6bd7a1509 |
| go | github.com/mattermost/mattermost | >=10.11.0-rc1, <10.11.5-0.20251016131338-dad6bd7a1509 >=11.0.0-alpha.1, <11.1.0 >=10.11.0-rc1+incompatible, <11.1.0+incompatible |
10.11.5-0.20251016131338-dad6bd7a1509 11.1.0 11.1.0+incompatible |
| go | github.com/mattermost/mattermost-server | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v5 | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v6 | all versions |
no fix listed |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
github.com
/mattermost/mattermost/commit/dad6bd7a1509054580a0898bbc0e026aac3b30cb
web, patch
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-62690
advisory
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-q66g-q98c-q454
advisory
Sources
- CVE List CVE-2025-62690
- GitHub Advisory GHSA-q66g-q98c-q454
- NVD CVE-2025-62690
- OSV GO-2025-4248
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.