High severity8.3NVD Advisory· Published Oct 1, 2020· Updated Jun 17, 2026
CVE-2020-25017
CVE-2020-25017
Description
Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4- Envoy/Envoydescription
<=1.15.0+ 1 more
- (no CPE)range: <=1.15.0
- cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*range: <1.12.7
Patches
Vulnerability mechanics
References
2- github.com/envoyproxy/envoy/security/advisories/GHSA-2v25-cjjq-5f4wnvdExploitThird Party Advisory
- groups.google.com/forum/nvd
News mentions
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