CVE-2025-26467
No exploitation reported by the sources we read.
- Published2025-08-25
- Fixed in5.0.3 · 4.1.8 · 4.0.17 · 3.11.18 · 3.0.31
- WeaknessCWE-267
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data MODIFY permission on all keyspaces on affected versions should review data access rules for potential breaches. This issue affects Apache Cassandra 3.0.30, 3.11.17, 4.0.16, 4.1.7, 5.0.2, but this advisory is only for 4.0.16 because the fix to CVE-2025-23015 was incorrectly applied to 4.0.16, so that version is still affected. Users in the 4.0 series are recommended to upgrade to version 4.0.17 which fixes the issue. Users from 3.0, 3.11, 4.1 and 5.0 series should follow recommendation from CVE-2025-23015.
Timeline
dates in UTC- 2025-08-2514:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-26467?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-26467?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · OSV| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.0 | ≥ 5.0.0, < 5.0.3 | 5.0.3 | NVD |
| 4.1 | ≥ 4.1.0, < 4.1.8 | 4.1.8 | NVD |
| 4.0 | ≥ 4.0.0, < 4.0.17 | 4.0.17 | NVD |
| 4.0 | ≥ 4.0.16, < 4.0.17 | 4.0.17 | OSV |
| 3.11 | ≥ 3.11.0, < 3.11.18 | 3.11.18 | NVD |
| 3.0 | ≥ 3.0.0, < 3.0.31 | 3.0.31 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Apache cassandra to 5.0.3 · 4.1.8 · 4.0.17 · 3.11.18 · 3.0.31
Advisories and patches
- lists.apache.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2025-08-25
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2025-26467?
Is CVE-2025-26467 actively exploited?
What is the CVSS score for CVE-2025-26467?
Running cassandra? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.