# CVE-2026-82641: Keploy 3.1.0-3.6.25 Unauthenticated TLS Key Exposure

Status: published. Published: 2026-08-30. Updated: 2026-11-08.

Keploy versions 3.1.0 through 3.6.25, fixed in 3.6.26, bind the agent control-plane HTTP server to all interfaces without authentication, exposing endpoints that stream TLS session keys and traffic data. Attackers can access the /agent/pcap/keylog endpoint to retrieve NSS keylog lines and decrypt recorded TLS traffic, or invoke /agent/stop and /agent/storemocks to manipulate recording sessions.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/keploy/keploy/pull/4451
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/keploy/keploy/commit/a6257d2b3184b85eb30edad345464aa292297b83

## Affected products and versions

- Keploy / Keploy (go.keploy.io/server/v3): ≥ 3.1.0; ≤ 3.6.25 (affected, semver); 3.6.26 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.8 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.6 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.60% as of 2026-11-08; percentile 48.72%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-306

## Exploit evidence

- exploit: https://github.com/keploy/keploy/issues/4394 (ADP: CISA-ADP)

## References

- https://github.com/keploy/keploy/security/advisories/GHSA-p79c-x224-cv8h (CNA: VulnCheck; vendor-advisory)

- https://github.com/keploy/keploy/releases/tag/v3.6.26 (CNA: VulnCheck; release-notes)

- https://github.com/keploy/keploy/pull/4451 (CNA: VulnCheck; issue-tracking, patch)

- https://github.com/keploy/keploy/commit/a6257d2b3184b85eb30edad345464aa292297b83 (CNA: VulnCheck; patch)

- https://www.vulncheck.com/advisories/keploy-3.1.0-through-3.6.25-unauthenticated-tls-key-exposure (CNA: VulnCheck; third-party-advisory)

- https://github.com/keploy/keploy/issues/4394 (ADP: CISA-ADP; exploit)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-82641; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-82641; retrieved 2026-11-08; source updated Not reported

Revision: 429bdd4a13c1751fe5d022914c4c2fd4613aa3a113d6d1ec026cf77fda894ade

Canonical: https://y2.dev/cve/CVE-2026-82641

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