CVE-2026-53715

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 71% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, HTTPServer.ServeHTTP in internal/wasm/httpserver.go reads the plain mappingPath2Cache map without synchronization while HTTPServer.Get writes the same map during EnvoyExtensionPolicy translation. An attacker with pod-network access to unauthenticated port 18002 and tenant permission to churn policies with distinct Wasm URLs can flood GET requests until a per-request reader overlaps a writer. Go's concurrent map read and write detection invokes runtime.throw, which the net/http connection recovery cannot catch, terminating the controller process and causing a timing-dependent, cross-tenant control-plane denial of service until Kubernetes restarts the pod. This issue is fixed in versions 1.7.4 and 1.8.1.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

July 16, 2026

Last Modified

September 15, 2026

Advisory Details (9)

Auto-updated Sep 14, 2026
Patch available. Sources: github_release, github, github_pr, github_commit.
github_release Patch Available

v1.8.1

Patch available: envoyproxy/gateway v1.8.1

https://github.com/envoyproxy/gateway/releases/tag/v1.8.1
github_release Patch Available

v1.7.4

Patch available: envoyproxy/gateway v1.7.4

https://github.com/envoyproxy/gateway/releases/tag/v1.7.4
github_commit

commit b4737180c7e5 (envoyproxy/gateway)

Fix landed in envoyproxy/gateway commit b4737180c7e5 — awaiting tagged release

https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eead
github_commit

commit 96e2b750868a (envoyproxy/gateway)

Fix landed in envoyproxy/gateway commit 96e2b750868a — awaiting tagged release

https://github.com/envoyproxy/gateway/commit/96e2b750868a459ace4b8b68e6a6e4fb0152b9b7
github_commit

commit 5a78db82b7cf (envoyproxy/gateway)

Fix landed in envoyproxy/gateway commit 5a78db82b7cf — awaiting tagged release

https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464
github_pr

fix github SA for June release

Fix merged in envoyproxy/gateway PR #9173 on 2026-06-05 — awaiting tagged release

https://github.com/envoyproxy/gateway/pull/9173
github_pr

[release-1.8] fix github SA for June release

Fix merged in envoyproxy/gateway PR #9172 on 2026-06-05 — awaiting tagged release

https://github.com/envoyproxy/gateway/pull/9172
github_pr

[release-1.7] fix github SA for June release

Fix merged in envoyproxy/gateway PR #9171 on 2026-06-05 — awaiting tagged release

https://github.com/envoyproxy/gateway/pull/9171
github Patch Available

Wasm cache ServeHTTP reads mappingPath2Cache without lock · Advisory · envoyproxy/gateway · GitHub

https://github.com/envoyproxy/gateway/security/advisories/GHSA-8fv2-88gg-hm7q

Vendor Advisories for CVE-2026-53715(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/envoyproxy/gateway—1.8.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-17 10:29 UTCEG score recompute
  3. 2026-09-16 14:08 UTCEPSS rescore
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-15 15:35 UTCEG score recompute
  6. 2026-09-15 14:43 UTCEG score recompute
  7. 2026-09-14 21:33 UTCEG score recompute
  8. 2026-07-30 17:16 UTCEG score recompute
  9. 2026-07-26 11:24 UTCEG score recompute
  10. 2026-07-23 03:19 UTCEG score recompute
  11. 2026-07-16 20:04 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-53715?
CVE-2026-53715 is a medium vulnerability published on July 16, 2026. Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, HTTPServer.ServeHTTP in internal/wasm/httpserver.go reads the plain mappingPath2Cache map without synchronization while HTTPServer.Get writes the same…
When was CVE-2026-53715 disclosed?
CVE-2026-53715 was first published in the National Vulnerability Database on July 16, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53715 actively exploited?
CVE-2026-53715 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.5% of all scored CVEs.
What is the CVSS score of CVE-2026-53715?
CVE-2026-53715 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-53715?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53715, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53715

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