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🔴 2 critical CVEs in curl Worst: auth bypass in FTP connection reuse (CVE-2026-86411) Patch → see advisories https://cve.now/CVE-2026-86411?release=CVE-2026-87866
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CVE-2026-87866
LOWCVSS 9.1 · CRITICALSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
When built with wolfSSL, curl can successfully validate a pinned public key hash against a key the TLS peer does not possess. During the TLS handshake, wolfSSL validates the connection, but curl's subsequent re-parsing of the same certificate - tricked by a manipulated validity length field - extracts and matches a different embedded key, incorrectly authorizing the pinned public key.
0.0/ 10 priority
Sources & remediation
Other references
Weakness type (CWE)
CWE-295
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day