CVE-2026-90777

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-13. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

ESPnet before 202609 deserializes pretrained model checkpoints using torch.load with weights_only=False, allowing arbitrary code execution from attacker-supplied files. Attackers can craft malicious checkpoint files that execute code during deserialization when loaded through the initialization or fine-tuning path.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

September 13, 2026

Last Modified

September 14, 2026

Advisory Details (6)

Auto-updated Sep 13, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
generic

ESPnet before 202609 Remote Code Execution via Unsafe Deserialization | Advisories | VulnCheck

https://www.vulncheck.com/advisories/espnet-before-202609-remote-code-execution-via-unsafe-deserialization
generic

GitHub - espnet/espnet: End-to-End Speech Processing Toolkit · GitHub

https://github.com/espnet/espnet
github_release Patch Available

ESPnet version 202609

Patch available: espnet/espnet v.202609

https://github.com/espnet/espnet/releases/tag/v.202609
generic

espnet/espnet2/torch_utils/load_pretrained_model.py at v.202511 · espnet/espnet · GitHub

https://github.com/espnet/espnet/blob/v.202511/espnet2/torch_utils/load_pretrained_model.py#L99
github_commit Patch Available

commit 91ca045fc179 (espnet/espnet)

Patch available: espnet/espnet v.202609 (contains commit 91ca045fc179)

https://github.com/espnet/espnet/commit/91ca045fc179f29bc7b7fe05cd852aea65310003
github Patch Available🟡 PoC Available

ESPnet — Remote code execution via insecure deserialization in load_pretrained_model · Advisory · espnet/espnet · GitHub

https://github.com/espnet/espnet/security/advisories/GHSA-64f6-3gqc-r926

Vendor Advisories for CVE-2026-90777(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 30× in last 7d / 35× 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. 2026-09-21 04:37 UTCEG score recompute
  2. 2026-09-21 04:37 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 15:41 UTCGHSA enrichment
  5. 2026-09-20 02:56 UTCEG score recompute
  6. 2026-09-20 02:56 UTCGHSA enrichment
  7. 2026-09-19 14:09 UTCGHSA enrichment
  8. 2026-09-19 01:23 UTCEG score recompute
  9. 2026-09-19 01:23 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 12:38 UTCGHSA enrichment
  12. 2026-09-17 23:52 UTCEG score recompute
  13. 2026-09-17 23:52 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-17 10:26 UTCGHSA enrichment
  16. 2026-09-16 21:40 UTCEG score recompute
  17. 2026-09-16 21:40 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 08:52 UTCEG score recompute
  20. 2026-09-16 08:52 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 20:06 UTCGHSA enrichment
  23. 2026-09-15 07:20 UTCEG score recompute
  24. 2026-09-15 07:20 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 10 more
  1. 2026-09-14 18:34 UTCEG score recompute
  2. 2026-09-14 18:33 UTCGHSA enrichment
  3. 2026-09-14 17:35 UTCEG score recompute
  4. 2026-09-14 17:35 UTCGHSA enrichment
  5. 2026-09-14 13:50 UTCGHSA enrichment
  6. 2026-09-14 01:04 UTCEG score recompute
  7. 2026-09-14 01:04 UTCGHSA enrichment
  8. 2026-09-13 12:18 UTCEG score recompute
  9. 2026-09-13 11:49 UTCEG score recompute
  10. 2026-09-13 11:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90777?
CVE-2026-90777 is a high vulnerability published on September 13, 2026. ESPnet before 202609 deserializes pretrained model checkpoints using torch.load with weights_only=False, allowing arbitrary code execution from attacker-supplied files. Attackers can craft malicious checkpoint files that execute code during deserialization when loaded through the initialization or…
When was CVE-2026-90777 disclosed?
CVE-2026-90777 was first published in the National Vulnerability Database on September 13, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90777 actively exploited?
CVE-2026-90777 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.7% of all scored CVEs.
What is the CVSS score of CVE-2026-90777?
CVE-2026-90777 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-90777?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90777, 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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