CVE-2026-81702

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-27. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

openssl_encrypt before 1.4.9 fails to re-derive and validate fingerprints when loading identities from identity.json, allowing attackers to substitute public keys in identity stores. Attackers can replace legitimate public keys with their own while maintaining the claimed fingerprint, enabling silent key substitution where encryption uses attacker keys and signature verification appears valid.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
Patch available. Sources: github.
generic

openssl_encrypt before 1.4.9 Key Substitution via Identity Load | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-key-substitution-via-identity-load
github Patch Available

Identity.load trusts the stored fingerprint without re-deriving it, enabling silent key substitution · Advisory · jahlives/openssl_encrypt · GitHub

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-q8p3-7h6h-ghfr

Vendor Advisories for CVE-2026-81702(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 21× 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. 2026-08-30 01:56 UTCEG score recompute
  2. 2026-08-30 01:56 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 21:38 UTCGHSA enrichment
  5. 2026-08-29 17:20 UTCGHSA enrichment
  6. 2026-08-29 12:51 UTCGHSA enrichment
  7. 2026-08-29 08:31 UTCGHSA enrichment
  8. 2026-08-29 04:12 UTCGHSA enrichment
  9. 2026-08-28 23:53 UTCEG score recompute
  10. 2026-08-28 23:53 UTCGHSA enrichment
  11. 2026-08-28 21:42 UTCEPSS rescore
  12. 2026-08-28 19:22 UTCGHSA enrichment
  13. 2026-08-28 15:01 UTCGHSA enrichment
  14. 2026-08-28 10:40 UTCGHSA enrichment
  15. 2026-08-28 06:21 UTCGHSA enrichment
  16. 2026-08-28 02:01 UTCGHSA enrichment
  17. 2026-08-27 21:43 UTCEG score recompute
  18. 2026-08-27 21:43 UTCGHSA enrichment
  19. 2026-08-27 17:25 UTCEG score recompute
  20. 2026-08-27 16:47 UTCEG score recompute
  21. 2026-08-27 16:43 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-81702?
CVE-2026-81702 is a critical vulnerability published on August 27, 2026. openssl_encrypt before 1.4.9 fails to re-derive and validate fingerprints when loading identities from identity.json, allowing attackers to substitute public keys in identity stores. Attackers can replace legitimate public keys with their own while maintaining the claimed fingerprint, enabling…
When was CVE-2026-81702 disclosed?
CVE-2026-81702 was first published in the National Vulnerability Database on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81702 actively exploited?
CVE-2026-81702 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 96.4% of all scored CVEs.
What is the CVSS score of CVE-2026-81702?
CVE-2026-81702 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-81702?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81702, 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

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