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CVE-2026-4963

31
FAUCET Score

CVE-2026-4963 identifies a code injection vulnerability in huggingface smolagents version 1.25.0.dev0, specifically within the `local_python_executor.py` component, stemming from an incomplete fix for CVE-2025-9959. This medium-severity flaw (CVSS 6.3) can be exploited remotely with low complexity, though it requires user interaction and results in low impacts to confidentiality, integrity, and availability. Public exploit code is available, and the vendor has not responded to disclosure. However, there is no indication of active exploitation, and community discussion remains minimal with only one mention.

Impacted Technologies

VendorProductVersion(s)CPE
1.25.0CPE matchmatch criteria
cpe:2.3:a:huggingface:smolagents:1.25.0:dev0:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

2.1LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
44.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 24th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

pipGHSA-54fq-v6x8-244glow

Hugging Face Smolagents has an Injection issue

Mar 27, 2026

References

gist.github.com / YLChen-007/35b7d46e892266a0ed6dbe57802858be
ExploitThird Party Advisory
gist.github.com / YLChen-007/7146f45960f79bc1e2976fed526e0a9b
ExploitThird Party Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry