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CVE-2026-4963

A weakness has been identified in huggingface smolagents 1.25.0.dev0. This affects the function evaluate_augassign/evaluate_call/evaluate_with of the file src/smolagents/local_python_executor.py of the component Incomplete Fix CVE-2025-9959. This manipulation causes code injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0693b21f231fc45609b39f06c6126156f40d9f725ecffea95a1cab662fdace2f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/3/cvssV2_0
cwe · 2 assertions

{"cweId":"CWE-94","description":"Code Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-74","description":"Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:huggingface:smolagents:*:*:*:*:*:*:*:*"],"modules":["Incomplete Fix CVE-2025-9959"],"product":"smolagents","vendor":"huggingface","versions":[{"status":"affected","version":"1.25.0.dev0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/metrics/3/cvssV2_0

CWE assertions

2 source assertions
{"cweId":"CWE-94","description":"Code Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-74","description":"Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/problemTypes/1/descriptions/0

Source references

7 source assertions
{"tags":["exploit"],"url":"https://gist.github.com/YLChen-007/35b7d46e892266a0ed6dbe57802858be"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/references/6
{"tags":["related"],"url":"https://gist.github.com/YLChen-007/7146f45960f79bc1e2976fed526e0a9b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/references/5
{"name":"VDB-353840 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.353840"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/references/1
{"name":"VDB-353840 | huggingface smolagents Incomplete Fix CVE-2025-9959 local_python_executor.py evaluate_with code injection","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.353840"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/references/0
{"name":"Submit #777623 | HuggingFace smolagents 1.25.0.dev0 CWE-693","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.777623"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/references/2
{"name":"Submit #777643 | HuggingFace smolagents 1.25.0.dev0 CWE-693 (Duplicate)","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.777643"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/references/3
{"name":"Submit #777644 | HuggingFace smolagents 1.25.0.dev0 CWE-693 (Duplicate)","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.777644"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5cfa00fa8d0a15a0bc454ccfd6ad52a1867b6e4567fc8516029639954a8543c7 · sha256:12eb3f9c02af20f5… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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