CVE-2026-82477

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreHIGH confidence

Score 5.8 from GitHub Security Advisory published 2026-08-29. a secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.8Exploit: Elevated riskExposed: 0

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

In MITRE SAF Heimdall 2.11.6 through 2.13.x before 2.14.0, an SSRF issue allows remote attackers to access internal network resources via the Tenable proxy endpoint. This occurs in apps/backend/src/tenable/tenable.controller.ts.

CVSS v3
5.8
EG Score
5.8(high)
EG Risk
57(Attend)
EG Risk 57/100SSVC: Attend

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
Severity58% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 29, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Aug 29, 2026
Patch available. Sources: github_commit, github_release.
github_release Patch Available

v2.14.0

Patch available: mitre/heimdall2 v2.14.0

https://github.com/mitre/heimdall2/releases/tag/v2.14.0
github_commit

commit b6a9cdb4fc01 (mitre/heimdall2)

Fix landed in mitre/heimdall2 commit b6a9cdb4fc01 — awaiting tagged release

https://github.com/mitre/heimdall2/commit/b6a9cdb4fc01f96aaa1a77cc27d1d449b485937b

Vendor Advisories for CVE-2026-82477(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 22× in last 7d / 70× 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. 2026-09-20 21:44 UTCEG score recompute
  2. 2026-09-20 21:44 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 00:01 UTCEG score recompute
  5. 2026-09-20 00:01 UTCGHSA enrichment
  6. 2026-09-19 02:18 UTCEG score recompute
  7. 2026-09-19 02:18 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 04:36 UTCEG score recompute
  10. 2026-09-18 04:36 UTCGHSA enrichment
  11. 2026-09-17 06:53 UTCEG score recompute
  12. 2026-09-17 06:53 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 09:10 UTCEG score recompute
  15. 2026-09-16 09:10 UTCGHSA enrichment
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-15 11:04 UTCEG score recompute
  18. 2026-09-15 11:04 UTCGHSA enrichment
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-14 12:40 UTCEG score recompute
  22. 2026-09-14 12:40 UTCGHSA enrichment
  23. 2026-09-13 14:55 UTCGHSA enrichment
  24. 2026-09-12 17:00 UTCEG score recompute
  25. 2026-09-12 17:00 UTCGHSA enrichment
Show 45 more
  1. 2026-09-11 19:17 UTCEG score recompute
  2. 2026-09-11 19:17 UTCGHSA enrichment
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-10 21:34 UTCEG score recompute
  6. 2026-09-10 21:34 UTCGHSA enrichment
  7. 2026-09-09 23:51 UTCGHSA enrichment
  8. 2026-09-09 00:24 UTCEG score recompute
  9. 2026-09-09 00:24 UTCGHSA enrichment
  10. 2026-09-08 22:01 UTCEPSS rescore
  11. 2026-09-07 21:57 UTCEG score recompute
  12. 2026-09-07 21:57 UTCGHSA enrichment
  13. 2026-09-07 00:14 UTCEG score recompute
  14. 2026-09-07 00:14 UTCGHSA enrichment
  15. 2026-09-06 13:48 UTCEPSS rescore
  16. 2026-09-06 02:26 UTCEG score recompute
  17. 2026-09-06 02:26 UTCGHSA enrichment
  18. 2026-09-05 15:31 UTCEPSS rescore
  19. 2026-09-05 04:43 UTCEG score recompute
  20. 2026-09-05 04:43 UTCGHSA enrichment
  21. 2026-09-04 06:59 UTCEG score recompute
  22. 2026-09-04 06:59 UTCGHSA enrichment
  23. 2026-09-04 05:07 UTCEPSS rescore
  24. 2026-09-03 09:10 UTCEG score recompute
  25. 2026-09-03 09:10 UTCGHSA enrichment
  26. 2026-09-02 14:12 UTCEPSS rescore
  27. 2026-09-02 11:26 UTCEG score recompute
  28. 2026-09-02 11:26 UTCGHSA enrichment
  29. 2026-09-01 13:54 UTCEPSS rescore
  30. 2026-09-01 13:42 UTCEG score recompute
  31. 2026-09-01 13:42 UTCGHSA enrichment
  32. 2026-09-01 12:51 UTCEG score recompute
  33. 2026-09-01 12:51 UTCGHSA enrichment
  34. 2026-09-01 04:40 UTCEPSS rescore
  35. 2026-09-01 04:40 UTCEPSS rescore
  36. 2026-08-31 21:09 UTCGHSA enrichment
  37. 2026-08-31 10:52 UTCEG score recompute
  38. 2026-08-31 10:52 UTCGHSA enrichment
  39. 2026-08-30 19:18 UTCEPSS rescore
  40. 2026-08-30 19:17 UTCEPSS rescore
  41. 2026-08-30 13:09 UTCEG score recompute
  42. 2026-08-30 13:08 UTCGHSA enrichment
  43. 2026-08-29 15:24 UTCEG score recompute
  44. 2026-08-29 14:25 UTCEG score recompute
  45. 2026-08-29 14:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82477?
CVE-2026-82477 is a medium vulnerability published on August 29, 2026. In MITRE SAF Heimdall 2.11.6 through 2.13.x before 2.14.0, an SSRF issue allows remote attackers to access internal network resources via the Tenable proxy endpoint. This occurs in apps/backend/src/tenable/tenable.controller.ts.
When was CVE-2026-82477 disclosed?
CVE-2026-82477 was first published in the National Vulnerability Database on August 29, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82477 actively exploited?
CVE-2026-82477 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 71.7% of all scored CVEs.
What is the CVSS score of CVE-2026-82477?
CVE-2026-82477 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-82477?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82477, 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

Explore the affected products and dependency analysis for CVE-2026-82477

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