How to Fix CVE-2026-27885: Piwigo (Bundle Sibling)

*By Sai Kiran Pandrala*

Last verified: 2026-05-25

CVE-2026-27885 is a sibling vulnerability in the same Piwigo Piwigo advisory bundle as CVE-2026-27634. The same patched build closes every CVE in the bundle, so the remediation procedure for CVE-2026-27885 matches the primary write-up.

What is different about CVE-2026-27885?

Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, a SQL Injection vulnerability was discovered in Piwigo affecting the Activity List API endpoint. This vulnerability allows an authenticated administrator to extract sensitive data from the database, including user credentials, email addresses, and all stored content.

Impact is consistent with the bundle: SQL injection that can read or modify the backing database. The patched build closes every code path in the advisory in one update.

How to fix CVE-2026-27885

Apply the patched build per the primary write-up: How to Fix CVE-2026-27634.

For a quick check, confirm the running version of Piwigo:

# Confirm the installed version via your package manager
dpkg -l | grep -i piwigo   # Debian/Ubuntu
rpm -qa | grep -i piwigo   # RHEL/CentOS/Rocky

Frequently asked questions

Is CVE-2026-27885 being actively exploited?

Not at the time of writing. It is not listed in CISA's Known Exploited Vulnerabilities catalog. That status can change, so monitor the vendor advisory and the KEV catalog if the system is exposed.

How severe is CVE-2026-27885?

CVSS rates it 7.2 (High). Use that score to set your patch priority alongside the other items in your queue.

Do I have to take Piwigo offline to apply the patch?

It depends on the deployment. High-availability or clustered installs can usually patch one node at a time with no full outage. Standalone installs typically need a short restart. Always follow the vendor's documented upgrade steps.

What if my vulnerability scanner still flags CVE-2026-27885 after I patch?

Re-run the scan after a service restart, then confirm the scanner's plugin set is up to date. Some scanners detect by banner version only and lag the official fix metadata by a release.

References

• Official vendor advisory: https://github.com/Piwigo/Piwigo/security/advisories/GHSA-wfmr-9hg8-jh3m
• NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2026-27885
• CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
• Primary write-up: How to Fix CVE-2026-27634

*Written by Sai Kiran Pandrala. Last verified 2026-05-25. Part of the Piwigo Piwigo advisory bundle. Full procedure at how-to-fix-cve-2026-27634.*