CVE-2025-54499Published

Insecure string comparison enables timing attacks

Collected exploitation and prediction evidence

CISA 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-2025-54499

Published

Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to use constant-time comparison for sensitive string comparisons which allows attackers to exploit timing oracles to perform byte-by-byte brute force attacks via response time analysis on Cloud API keys and OAuth client secrets

Source published: 16 Oct 2025 08:17:20 UTC
Source modified: 16 Oct 2025 13:51:10 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 · 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

euvd · EUVD-2025-34730

Published

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, 8:17:20 AM

dateUpdated: Oct 16, 2025, 1:51:10 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, 8:17:20 AM (timezone not stated)
Source modified: Oct 16, 2025, 1:51:10 PM (timezone not stated)
Observed here: 7 Nov 2026 02:38:27 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 · 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

nvd · CVE-2025-54499

Published

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-208

Original publisher date fields

published: 2025-10-16T09:15:34.507

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 09:15:34 UTC
Source modified: 19 Oct 2026 16:10:00 UTC
Observed here: 25 Oct 2026 02:25:06 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 · 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS 3.1 · [email protected] · Primary · 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

osv · GHSA-xr3w-rmvj-f6m7

Published

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:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Publisher rating · LOW

osv · GO-2025-4036

Published

Mattermost has an Observable Timing Discrepancy vulnerability in github.com/mattermost/mattermost-server

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.