TYPO3 9.5.55 ELTS
Release Notes
Stay secure and up-to-date with TYPO3 ELTS!
The TYPO3 CMS community supported from 2018-10-02
until 2021-09-30.
Extend your support now until 2025-09-30 to
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Release Notes for TYPO3 CMS 9.5.55
This document contains information about TYPO3 CMS 9.5.55 which was released on 09.09.2025.
Get TYPO3 9.5.55 nowNews
This release is a combined bug fix and security release.
Find more details in the security bulletins:
- https://typo3.org/security/advisory/typo3-core-sa-2025-017
- https://typo3.org/security/advisory/typo3-core-sa-2025-020
- https://typo3.org/security/advisory/typo3-core-sa-2025-021
- https://typo3.org/security/advisory/typo3-core-sa-2025-022
Checksums of TYPO3 9.5.55
SHA256
79b0f54a3a1ee2dba80251ad508bac85e57474671bf2caec630c83fdcdc46cbd typo3_src-9.5.55.tar.gz 05c1e3e41dcd69ae716a60707b0dc3bb5a76d44c5ffe256f70b986b775e860de typo3_src-9.5.55.zip
SHA1
896c703a52011041069e7962197e1e09b0dee2c7 typo3_src-9.5.55.tar.gz f07d677f7f29df4b5044237b054456ab1c23c560 typo3_src-9.5.55.zip
MD5
d41d8cd98f00b204e9800998ecf8427e typo3_src-9.5.55.tar.gz d41d8cd98f00b204e9800998ecf8427e typo3_src-9.5.55.zip
Package Signatures
TYPO3 Release Packages (the downloadable tarballs and zip files) as well as Git tags are signed using PGP signatures during the automated release process. Besides that, MD5 and SHA2-256 hashes are being generated for these files. Find more details on verifying signatures and hashes in the infrastructure guide.
Upgrading
The usual upgrading procedure applies. No database updates are necessary. It might be required to clear all caches; the "important actions" section in the TYPO3 Install Tool offers the accordant possibility to do so.
Changes
Here is a list of what was fixed since 9.5.54:
- 2025-09-09 13a3b17f95 [RELEASE] Release of TYPO3 9.5.55 (thanks to Andreas Kienast)
- 2025-09-09 55ce3822c5 [SECURITY] Avoid displaying version details to unauthorized users (thanks to Oliver Hader)
- 2025-09-09 29e9902ee8 [SECURITY] Inherit access to module-related AJAX routes from modules (thanks to Elias Häußler)
- 2025-09-09 60a22c4775 [SECURITY] Prevent information disclosure via filesystem E_WARNING errors (thanks to Andreas Kienast)
- 2025-09-09 4019e96cdb [SECURITY] Fix open redirection via GeneralUtility::sanitizeLocalUrl (thanks to Benjamin Franzke)
- 2025-08-14 b509b46ead [TASK] Set TYPO3 version to 9.5.55-dev (thanks to Andreas Kienast)