CVE-2026-31844
Authenticated SQL injection in Koha staff interface via displayby.
Is CVE-2026-31844 being exploited?
Not confirmed. CVE-2026-31844 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 0.37% probability of exploitation in the next 30 days.
How severe is CVE-2026-31844?
CVE-2026-31844 is rated High with a CVSS score of 8.7. 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-2026-31844?
Yes. A fix has been recorded for CVE-2026-31844. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-31844 affect?
CVE-2026-31844 affects Koha. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-31844?
Patch/upgrade Koha to fixed version when available
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated staff can inject SQL to read/modify data; may lead to full backend DB compromise.
Patch when possible
- affected>= 24.11.0 and <= 24.11.12
- affected>= 25.05.0 and <= 25.05.07
- affected>= 25.11.0 and <= 25.11.01
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.