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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
  • Envoyproxy/Envoy2 versions
    cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*range: <1.12.7
    • (no CPE)range: <=1.15.0
  • Envoy/envoycpe-rescue
  • osv-coords
    pkg:bitnami/envoy
    Range: < 1.12.7

Patches

Vulnerability mechanics

References

2

News mentions

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