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TI-2026-36657 Aliases CVE-2026-49740GHSA-c78m-c52x-jgwp

TYPO3 CMS - Insecure Deserialization in Core API

Priority LOW 27CWE-502Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

TYPO3's cache frontend (VariableFrontend) and persistent key-value store (Registry) deserialized PHP payloads without integrity validation or class restrictions. An attacker with write access to the underlying storage backend (cache store or sys_registry database table) could inject a crafted serialized payload to trigger PHP Object Injection, potentially exploiting a gadget chain to achieve Remote Code Execution or other high-impact effects. Exploiting this vulnerability requires direct local write access to the storage, such as the SQL database or file system. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00215 11th percentileScored 2026-11-07
Fix Fixed TYPO3 CMS (TYPO3): 10.4.57, 11.5.51, 12.4.46 +2typo3/cms-core (Packagist): 10.4.57, 11.5.51, 12.4.46 +2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TYPO3TYPO3 CMSbefore 10.4.57; 11.0.0 to before 11.5.51; 12.0.0 to before 12.4.46; 13.0.0 to before 13.4.31; 14.0.0 to before 14.3.310.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3Patch availableCNA
—typo3/cms-core (Packagist)before 10.4.5710.4.57Patch availableGHSA-c78m-c52x-jgwp
—typo3/cms-core (Packagist)11.0.0 to before 11.5.5111.5.51Patch availableGHSA-c78m-c52x-jgwp
—typo3/cms-core (Packagist)12.0.0 to before 12.4.4612.4.46Patch availableGHSA-c78m-c52x-jgwp
—typo3/cms-core (Packagist)13.0.0 to before 13.4.3113.4.31Patch availableGHSA-c78m-c52x-jgwp
—typo3/cms-core (Packagist)14.0.0 to before 14.3.314.3.3Patch availableGHSA-c78m-c52x-jgwp
  • TYPO3 CMS VendorTYPO3 Affected before 10.4.57; 11.0.0 to before 11.5.51; 12.0.0 to before 12.4.46; 13.0.0 to before 13.4.31; 14.0.0 to before 14.3.3 Fixed in 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3 Patch available CNA
  • typo3/cms-core (Packagist) Vendor— Affected before 10.4.57 Fixed in 10.4.57 Patch available GHSA-c78m-c52x-jgwp
  • typo3/cms-core (Packagist) Vendor— Affected 11.0.0 to before 11.5.51 Fixed in 11.5.51 Patch available GHSA-c78m-c52x-jgwp
  • typo3/cms-core (Packagist) Vendor— Affected 12.0.0 to before 12.4.46 Fixed in 12.4.46 Patch available GHSA-c78m-c52x-jgwp
  • typo3/cms-core (Packagist) Vendor— Affected 13.0.0 to before 13.4.31 Fixed in 13.4.31 Patch available GHSA-c78m-c52x-jgwp
  • typo3/cms-core (Packagist) Vendor— Affected 14.0.0 to before 14.3.3 Fixed in 14.3.3 Patch available GHSA-c78m-c52x-jgwp

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*——TYPO3
  • cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* Versions — — ·TYPO3

Remediation

  • Fix · CNA TYPO3 CMS (TYPO3) Fixed in 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
  • Fix · GHSA-c78m-c52x-jgwp typo3/cms-core (Packagist) Fixed in 10.4.57 Advisory →
  • Fix · GHSA-c78m-c52x-jgwp typo3/cms-core (Packagist) Fixed in 11.5.51 Advisory →
  • Fix · GHSA-c78m-c52x-jgwp typo3/cms-core (Packagist) Fixed in 12.4.46 Advisory →
  • Fix · GHSA-c78m-c52x-jgwp typo3/cms-core (Packagist) Fixed in 13.4.31 Advisory →
  • Fix · GHSA-c78m-c52x-jgwp typo3/cms-core (Packagist) Fixed in 14.3.3 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    TYPO3 CMS 10.4.57, 11.5.51 and 3 more versions

    8 records Highest priority Priority LOW 8 LOW

    Other records, highest priority first

    • TI-2026-34921 TYPO3 CMS - Broken Access Control in Form FrameworkPriority LOW 35
    • TI-2026-10021 TYPO3 CMS - Broken Access Control in Form FrameworkPriority LOW 35
    • TI-2026-34918 TYPO3 CMS - Destructive Actions on File Mount FoldersPriority LOW 31
    Show all 8 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-49740
  2. 2026-10-03 Alias added: GHSA-c78m-c52x-jgwp

References

Patch 2

Advisory 2

Other 3

  • TI-2023-10314 Persisted Cross-Site Scripting in Frontend Rendering in typo3 CVSS 3.1HIGH 8.8
  • TI-2010-03538 The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3… CVSS 2.0HIGH 7.1
  • TI-2009-00775 The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before… CVSS 2.0MEDIUM 5.0
  • TI-2025-30547 The sr_feuser_register extension through 12.4.8 for TYPO3 allows Remote Code Execution. CVSS 3.1CRITICAL 10.0
  • TI-2019-08867 The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before… CVSS 3.1CRITICAL 9.8
  • TI-2008-04019 Unspecified vulnerability in the TYPO3 Secure Directory (kw_secdir) extension before… CVSS 2.0HIGH 10.0
See all 411 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences