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CVE-2026-77806

criticalpublic exploitCVSS 9.8covered by 1 sourcefirst seen 2026-08-21
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-77806 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation even though it is not (yet) in the CISA KEV catalog.
SPIP before 4.4.21 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to code injection via an X-Spip-Filtre HTTP request header that is mishandled by analyse_resultat_skel.

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Exploitation outlook

Exploit availability

Public exploit or proof-of-concept code for CVE-2026-77806 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.

Advisory coverage (1)

External references

NVD record for CVE-2026-77806

CVE.org record

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