Widely-used enterprise software; critical impact; potential widespread disruption across orgs.
CVE-2026-24685
OpenProject diff.diff arbitrary file write via crafted rev.
Is CVE-2026-24685 being exploited?
Not confirmed. CVE-2026-24685 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 0.33% probability of exploitation in the next 30 days.
How severe is CVE-2026-24685?
CVE-2026-24685 is rated Critical with a CVSS score of 9.4. 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-2026-24685?
Yes. A fix has been recorded for CVE-2026-24685. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-24685 affect?
CVE-2026-24685 affects OpenProject (pre-16.6.6, pre-17.0.2). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-24685?
Upgrade to OpenProject 16.6.6 or 17.0.2+ to fix.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated user with browse_repository can write/overwrite arbitrary files, risking data loss and DoS.
Patch when possible
- affected< 16.6.6
- affected>= 17.0.0 and < 17.0.2
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.