Authentication Bypass Vulnerability in SPIP by SPIP Core Team
CVE-2026-22205

8.7HIGH

Key Information:

Vendor

Spip

Status
Spip
Vendor
CVE Published:
26 February 2026

What is CVE-2026-22205?

SPIP versions prior to 4.4.10 are affected by an authentication bypass vulnerability due to PHP type juggling. This flaw enables attackers to exploit weak type comparisons in the authentication process, effectively allowing them to bypass login checks and gain unauthorized access to protected internal information. As a result, sensitive data could be exposed to unauthenticated users, posing a significant security risk.

Affected Version(s)

SPIP 0 < 4.4.10

References

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-S...
vendor-advisorypatch
https://git.spip.net/spip/spip
product
https://www.vulncheck.com/advisories/spip-sql-injection-r...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Arthur Deloffre (Vozec)
Louka Jacques-Chevallier (Laluka)
.