CVE-2026-72610

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

MEDIUM
4.3
CVSS Score
Published: August 11, 2026 at 11:22 AM UTC
Updated: October 24, 2026 at 03:10 PM UTC
1 product affected across 1 vendorKoha

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v < 24.11.1825.05.0 ≤ v < 25.05.1325.11.0 ≤ v < 25.11.0726.05.0 ≤ v < 26.05.02025.05.025.11.026.05.0
Affected range stops below 24.11.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 25.05.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 25.11.07, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.05.02, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMTuranSec
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-89

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