Koha Community Koha - Stored SQL Injection via Patron lang Field in Issue Slip Generation

Description

A stored SQL injection vulnerability in Koha through 24.11.17, 25.05.12, 25.11.06, and 26.05.01 allows authenticated staff with the borrowers => edit_borrowers permission to cause a time-based denial of service by storing a SQL payload in a patron lang field. The value is concatenated raw into a subquery in Koha::AdditionalContents->search_for_display when an issue slip is printed for the affected patron. The 25-character column length limits exploitation to timing attacks; data extraction is not practical. The stored payload executes on each subsequent issue-slip print, scaling linearly with the SLEEP value and the number of slip-news rows.

Scores

EPSS (exploitation in 30 days)

0.34% · top 73% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

• CWE-89: Improper Neutralization of Special Elements used in an SQL Command (SQL Injection) (opens in a new tab)All about CWE-89 and its CVEs

Affected products

• Koha Community · Koha

  • affected < 24.11.18
  • affected 25.05.0 – < 25.05.13
  • affected 25.11.0 – < 25.11.07
  • affected 26.05.0 – < 26.05.02

References (2)

• Koha Bug 42866 (opens in a new tab)
• Koha Community (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-72610](https://trackcve.app/badge/CVE-2026-72610.svg)](https://trackcve.app/cve/CVE-2026-72610)

Record last updated 11 Aug 2026, 12:02 UTC.