Arbitrary Mattermost Team can be joined by manipulating the SAML RelayState
Collected exploitation and prediction evidence
Risk source coverageCISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.
No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.
cve-program · CVE-2025-58075
PublishedMattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState
- Source published
- 16 Oct 2025 08:20:06 UTC
- Source modified
- 26 Feb 2026 16:57:27 UTC
- Observed here
- 23 Oct 2026 15:48:27 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
euvd · EUVD-2025-34729
PublishedMattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Oct 16, 2025, 8:20:06 AM
dateUpdated: Feb 26, 2026, 4:57:27 PM
1 related source bulletins · separate from aliases
openSUSE-SU-2025:15710-1: govulncheck-vulndb-0.0.20251105T184115-1.1 on GA media
CVE-2016-11063 · CVE-2016-11066 · CVE-2016-11067 · CVE-2016-11068 · CVE-2016-11069 · CVE-2016-11070 · CVE-2016-11071 · CVE-2016-11072 · CVE-2016-11073 · CVE-2016-11074 · CVE-2016-11075 · CVE-2016-11076 · CVE-2016-11077 · CVE-2016-11078 · CVE-2016-11079 · CVE-2016-11080 · CVE-2016-11081 · CVE-2016-11082 · CVE-2016-11083 · CVE-2016-11084 · CVE-2017-18872 · CVE-2023-32199 · CVE-2024-58269 · CVE-2025-10545 · CVE-2025-10678 · CVE-2025-10954 · CVE-2025-11374 · CVE-2025-11375 · CVE-2025-11579 · CVE-2025-11621 · CVE-2025-12044 · CVE-2025-26625 · CVE-2025-27093 · CVE-2025-41410 · CVE-2025-41443 · CVE-2025-54286 · CVE-2025-54287 · CVE-2025-54288 · CVE-2025-54289 · CVE-2025-54290 · CVE-2025-54291 · CVE-2025-54293 · CVE-2025-54469 · CVE-2025-54470 · CVE-2025-54471 · CVE-2025-54499 · CVE-2025-58073 · CVE-2025-58075 · CVE-2025-58356 · CVE-2025-59043 · CVE-2025-59048 · CVE-2025-59530 · CVE-2025-59836 · CVE-2025-59937 · CVE-2025-61141 · CVE-2025-61524 · CVE-2025-61581 · CVE-2025-61688 · CVE-2025-62156 · CVE-2025-62157 · CVE-2025-62375 · CVE-2025-62506 · CVE-2025-62513 · CVE-2025-62705 · CVE-2025-62714 · CVE-2025-62725 · CVE-2025-62820 · CVE-2025-64101 · CVE-2025-64102 · CVE-2025-64103
- Source published
- Oct 16, 2025, 8:20:06 AM (timezone not stated)
- Source modified
- Feb 26, 2026, 4:57:27 PM (timezone not stated)
- Observed here
- 7 Nov 2026 02:42:10 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.
EUVD CVSS 3.1 · 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
nvd · CVE-2025-58075
PublishedMattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-862
Original publisher date fields
published: 2025-10-16T09:15:35.030
lastModified: 2026-10-19T16:10:00.260
1 source CPE criteria · context only
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
- Source published
- 16 Oct 2025 09:15:35 UTC
- Source modified
- 19 Oct 2026 16:10:00 UTC
- Observed here
- 25 Oct 2026 03:17:18 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · [email protected] · Secondary · 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
osv · GHSA-r6qj-894f-5hr2
PublishedMattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState.
- Source published
- 16 Oct 2025 09:30:24 UTC
- Source modified
- 5 Nov 2025 19:57:38 UTC
- Observed here
- 24 Oct 2026 13:19:41 UTC
- Source terms
- GitHub Advisory Database · CC-BY-4.0
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Publisher rating · HIGH
osv · GO-2025-4035
PublishedMattermost has a Missing Authorization vulnerability in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.0.0-20250815100400-2d5cdc6e217e.
- Source published
- 30 Oct 2025 15:02:33 UTC
- Source modified
- 3 Mar 2026 04:57:00 UTC
- Observed here
- 24 Oct 2026 13:19:41 UTC
- Source terms
- OSV · upstream source license applies
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.