CVE-2026-82020

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreHIGH confidence

Score 6.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. a secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: None knownExposed: 0

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

Hermes Agent 0.16.0 prior to 0.17.0 contains an improper path restriction vulnerability that allows attackers who can influence ingested message content to overwrite the credential store by bypassing sensitive-path guards that excluded the auth.json file. Attackers can craft malicious messages directing the agent's file-write tooling to overwrite the credential store without triggering any path-based protection, enabling credential tampering or unauthorized access.

CVSS v3
6.8
EG Score
6.8(high)
EG Risk
31(Track)
EG Risk 31/100SSVC: 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
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 28, 2026

Last Modified

September 8, 2026

Advisory Details (5)

Auto-updated Aug 28, 2026
Patch available. Sources: github_release, github_pr, github_commit.
generic

Hermes Agent 0.16.0 < 0.17.0 Credential Store Overwrite via File-Write Tool | Advisories | VulnCheck

https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via-file-write-tool
github_commit

commit 2b67e96aec2a (NousResearch/hermes-agent)

Fix landed in NousResearch/hermes-agent commit 2b67e96aec2a — awaiting tagged release

https://github.com/NousResearch/hermes-agent/commit/2b67e96aec2aa2abd5e94b544cda8e564c75f9f5
github_commit

commit da28d5d11395 (NousResearch/hermes-agent)

Fix landed in NousResearch/hermes-agent commit da28d5d11395 — awaiting tagged release

https://github.com/NousResearch/hermes-agent/commit/da28d5d113956dcf803d5cff552a120740a96a59
github_pr

fix(approval): gate sensitive user-file terminal writes

Fix merged in NousResearch/hermes-agent PR #45821 on 2026-06-13 — awaiting tagged release

https://github.com/NousResearch/hermes-agent/pull/45821
github_release Patch Available

Hermes Agent v0.17.0 (v2026.6.19)

Patch available: NousResearch/hermes-agent v2026.6.19

https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.19

Vendor Advisories for CVE-2026-82020(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 19× in last 7d / 65× 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. 2026-09-19 18:20 UTCEG score recompute
  2. 2026-09-19 18:20 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 16:19 UTCEG score recompute
  5. 2026-09-18 16:19 UTCGHSA enrichment
  6. 2026-09-17 13:59 UTCEG score recompute
  7. 2026-09-17 13:59 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 11:58 UTCEG score recompute
  10. 2026-09-16 11:58 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 09:57 UTCEG score recompute
  13. 2026-09-15 09:57 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 07:56 UTCEG score recompute
  17. 2026-09-14 07:56 UTCGHSA enrichment
  18. 2026-09-13 05:55 UTCEG score recompute
  19. 2026-09-13 05:55 UTCGHSA enrichment
  20. 2026-09-12 03:54 UTCEG score recompute
  21. 2026-09-12 03:54 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 01:53 UTCEG score recompute
  25. 2026-09-11 01:53 UTCGHSA enrichment
Show 40 more
  1. 2026-09-09 23:52 UTCEG score recompute
  2. 2026-09-09 23:52 UTCGHSA enrichment
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-08 20:52 UTCEG score recompute
  5. 2026-09-08 20:51 UTCGHSA enrichment
  6. 2026-09-07 15:01 UTCEG score recompute
  7. 2026-09-07 15:01 UTCGHSA enrichment
  8. 2026-09-06 13:48 UTCEPSS rescore
  9. 2026-09-06 12:38 UTCEG score recompute
  10. 2026-09-06 12:38 UTCGHSA enrichment
  11. 2026-09-05 15:31 UTCEPSS rescore
  12. 2026-09-05 10:37 UTCEG score recompute
  13. 2026-09-05 10:37 UTCGHSA enrichment
  14. 2026-09-04 08:32 UTCEG score recompute
  15. 2026-09-04 08:32 UTCGHSA enrichment
  16. 2026-09-04 05:07 UTCEPSS rescore
  17. 2026-09-03 06:31 UTCEG score recompute
  18. 2026-09-03 06:31 UTCGHSA enrichment
  19. 2026-09-02 14:12 UTCEPSS rescore
  20. 2026-09-02 04:27 UTCEG score recompute
  21. 2026-09-02 04:26 UTCGHSA enrichment
  22. 2026-09-01 13:54 UTCEPSS rescore
  23. 2026-09-01 04:40 UTCEPSS rescore
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-09-01 02:23 UTCEG score recompute
  26. 2026-09-01 02:23 UTCGHSA enrichment
  27. 2026-09-01 02:10 UTCEG score recompute
  28. 2026-09-01 02:09 UTCGHSA enrichment
  29. 2026-08-31 16:46 UTCEG score recompute
  30. 2026-08-31 16:46 UTCGHSA enrichment
  31. 2026-08-30 19:18 UTCEPSS rescore
  32. 2026-08-30 19:17 UTCEPSS rescore
  33. 2026-08-30 13:59 UTCEG score recompute
  34. 2026-08-30 13:59 UTCGHSA enrichment
  35. 2026-08-30 01:22 UTCEPSS rescore
  36. 2026-08-29 11:58 UTCEG score recompute
  37. 2026-08-29 11:58 UTCGHSA enrichment
  38. 2026-08-28 20:25 UTCEG score recompute
  39. 2026-08-28 19:38 UTCEG score recompute
  40. 2026-08-28 19:36 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-82020?
CVE-2026-82020 is a medium vulnerability published on August 28, 2026. Hermes Agent 0.16.0 prior to 0.17.0 contains an improper path restriction vulnerability that allows attackers who can influence ingested message content to overwrite the credential store by bypassing sensitive-path guards that excluded the auth.json file. Attackers can craft malicious messages…
When was CVE-2026-82020 disclosed?
CVE-2026-82020 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82020 actively exploited?
CVE-2026-82020 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 73.7% of all scored CVEs.
What is the CVSS score of CVE-2026-82020?
CVE-2026-82020 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-82020?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82020, 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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