Weak password recovery in pimcore
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-640.
Summary
Pimcore is an Open Source Data & Experience Management Platform. Prior to 2025.4.6 and 2026.1.6, an unauthenticated attacker who knows a valid admin username can take over any Pimcore admin account by sending a password reset request with an attacker-controlled resetPasswordUrl. The server generates a real cryptographic recovery token, appends it to the supplied URL, and emails the link to the victim; when the victim clicks the link, the token is sent to the attacker and can be used with POST /pimcore-studio/api/login/token to authenticate with full admin privileges while bypassing two-factor authentication. This issue is fixed in versions 2025.4.6 and 2026.1.6.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| pimcore | pimcore | 2026.1.0 to before 2026.1.6; before 2025.4.6 | 2026.1.6, 2025.4.6 | Patch available | CNA |
| — | pimcore/studio-backend-bundle (Packagist) | before 2025.4.6 | 2025.4.6 | Patch available | GHSA-h854-c3m3-mh5v |
| — | pimcore/studio-backend-bundle (Packagist) | 2026.1.0 to before 2026.1.6 | 2026.1.6 | Patch available | GHSA-h854-c3m3-mh5v |
- pimcore Vendorpimcore Affected 2026.1.0 to before 2026.1.6; before 2025.4.6 Fixed in 2026.1.6, 2025.4.6 Patch available CNA
- pimcore/studio-backend-bundle (Packagist) Vendor— Affected before 2025.4.6 Fixed in 2025.4.6 Patch available GHSA-h854-c3m3-mh5v
- pimcore/studio-backend-bundle (Packagist) Vendor— Affected 2026.1.0 to before 2026.1.6 Fixed in 2026.1.6 Patch available GHSA-h854-c3m3-mh5v
Remediation
- Fix · CNA pimcore (pimcore) Fixed in 2026.1.6, 2025.4.6
- Fix · GHSA-h854-c3m3-mh5v pimcore/studio-backend-bundle (Packagist) Fixed in 2025.4.6 Advisory →
- Fix · GHSA-h854-c3m3-mh5v pimcore/studio-backend-bundle (Packagist) Fixed in 2026.1.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-55207
- 2026-10-03 Alias added: GHSA-h854-c3m3-mh5v
References
Other 6
- https://github.com/pimcore/pimcore/security/advisories/GHSA-h854-c3m3-mh5v
- https://github.com/pimcore/studio-backend-bundle/pull/1882
- https://github.com/pimcore/studio-backend-bundle/commit/ea9d329686f5e5aea2eec378d63ac2deb965bb27
- https://github.com/pimcore/studio-backend-bundle/releases/tag/v2025.4.6
- https://github.com/pimcore/studio-backend-bundle/releases/tag/v2026.1.6
- https://github.com/pimcore/pimcore
More pimcore vulnerabilities
- TI-2026-18925 Pimcore has a Blind SQL Injection in Admin Search Find API due to an incomplete fix for CVE-2023-30848 CVSS 3.1HIGH 8.8
- TI-2024-15667 Pimcore Admin Classic Bundle host header injection in the password reset CVSS 3.1HIGH 8.8
- TI-2026-40161 Pimcore: Remote Code Execution via DataObject Class-Definition Field Name CVSS 3.1CRITICAL 9.9
- TI-2026-18926 Pimcore ENV Variables and Cookie Informations are exposed in http_error_log CVSS 3.1HIGH 8.6
- TI-2024-16853 Pimcore Host Header Injection in user invitation link CVSS 3.1CRITICAL 9.3
- TI-2023-01489 SQL Injection in pimcore/pimcore CVSS 3.1HIGH 8.8
Sources
- CVE-2026-55207 · CVE Program
- CVE-2026-55207 · NVD
- FIRST EPSS
- GHSA-h854-c3m3-mh5v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences