CVE-2026-85538
Auth bug lets org members delete MISP attributes without proper modify permissions.
Is CVE-2026-85538 being exploited?
Not confirmed. CVE-2026-85538 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-85538?
CVE-2026-85538 is rated High with a CVSS score of 8.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-85538?
Yes. A fix has been recorded for CVE-2026-85538. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-85538 affect?
CVE-2026-85538 affects MISP (Malware Information Sharing Platform) instances. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85538?
Apply vendor patch, review roles/org membership, audit attribute deletions
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated org member can delete individual or bulk attributes, enabling unauthorized tampering or loss of threat-intel data.
Immediate action required
- affected<= 2.5.45
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.