CVE-2025-11374Medium· 6.5▾ SunlitA denial of service flaw has been discovered in Hashicorp Consul. The key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.4%
Last analysed / modified upstream
0.4% → 0.4%
A denial of service flaw has been discovered in Hashicorp Consul. The key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation.
github.com/hashicorp/consul: Consul's KV endpoint is vulnerable to denial of service — rated Moderate by Red Hat. Released 2025-10-28, updated 2026-09-23.
Affected:
No fix planned:
Fix deferred
Workarounds / mitigations:
Affected packages:
github.com/hashicorp/consul < 1.22.0Patched in:
github.com/hashicorp/consul 1.22.0Connected by shared product, vendor, weakness, or advisory.
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