CVE-2026-90777CWE-502insecure-deserialization

CVE-2026-90777

High · published September 13, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
53.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00733 · 53.8th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-09-13T16:17Z
References (7)
https://github.com/espnet/espnet · [email protected]https://github.com/espnet/espnet/blob/v.202511/espnet2/torch_utils/load_pretrained_model.py#L99 · [email protected]https://github.com/espnet/espnet/commit/91ca045fc179f29bc7b7fe05cd852aea65310003 · [email protected]https://github.com/espnet/espnet/releases/tag/v.202609 · [email protected]https://github.com/espnet/espnet/security/advisories/GHSA-64f6-3gqc-r926 · [email protected]https://www.vulncheck.com/advisories/espnet-before-202609-remote-code-execution-via-unsafe-deserialization · [email protected]https://github.com/espnet/espnet/security/advisories/GHSA-64f6-3gqc-r926 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 15 SEP 03:22Z
    EPSS moved — → 1%
    epss
  • 13 SEP 11:42Z
    ESPnet before 202609 Remote Code Execution via Unsafe Deserialization
    cvelistv5