VulnSocial

CVE-2026-94093Disclosure

LOWCVSS 2.1 · LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

A security vulnerability has been detected in DLR-RM stable-baselines3 up to 2.9.0. This affects the function PPO.load/load_replay_buffer/VecNormalize.load of the file save_util.py. Such manipulation leads to deserialization. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. In v2.9.0 the PyTorch tensor load path is hardened (weights_only=True), but that hardening was later reverted on master via PR #1913 "Hotfix: revert loading with weights_only=True" [blocked] to fix PyTorch 1.13 compat - so even the one "safe" path is inconsistent across versions. #2281 was closed as a duplicate of #1831 since both are unsafe pickle deserialization - but #1831's fix (PR #41) only gated the Hugging Face Hub loader in the separate huggingface_sb3 package. This finding covers the core stable_baselines3 load APIs (PPO.load, load_replay_buffer, VecNormalize.load), which have no safe mode or gate and remained exploitable in v2.9.0 until the outstanding hardening (PR #2264) ships.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-20CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-09-21); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-09-21: 1Mentions · 2026-10-21: 1Patch / Workaround · 2026-10-21: 1Technical Details · 2026-09-21: 1Technical Details · 2026-10-21: 109-2110-21
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-09-211
Disclosure1
2026-10-211
Patch1
Full discourse2 posts
  • Hugo | DevOps | Cybersecurity@HugoValters
    Patch

    CVE-2026-94093: insecure deserialization in DLR-RM stable-baselines3 (PPO.load, load_replay_buffer, VecNormalize.load) enables remote code execution. CVSS 6.3. Public exploit exists, patch status unknown. Update immediately. #CVE #infosec #cybersecurity https://www.valtersit.com/cve/CVE-2026-94093/ #DLRRM #CVEALERT #CVE #infosec #Linux #XSS #valtersit #snippet #SysAdmin #cybersecurity #devsecops #devops #developer #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #cybersecurityawareness #cybersecuritynews #cybersecuritytips #python #hacker #kali #ubuntu #debian #docker

    Post summary

    The text discloses CVE-2026-94093 (insecure deserialization leading to RCE, CVSS 6.3) in DLR-RM stable-baselines3, notes a public exploit exists with unknown patch status, and urges immediate updating. The explicit call to update aligns the primary classification with Patch.

    0000041
    1.1K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-94093 A security vulnerability has been detected in DLR-RM stable-baselines3 up to 2.9.0. This affects the function PPO.load/load_replay_buffer/VecNormalize.load of the fil… https://www.cve.org/CVERecord?id=CVE-2026-94093

    Post summary

    The text discloses a newly identified vulnerability (CVE-2026-94093) affecting specific functions in DLR-RM stable-baselines3 up to version 2.9.0, with no mention of exploit, patch, or active exploitation.

    00000890
    58.1K followersView on X

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