Vulnerability-Lookup

OPENSUSE-SU-2026:11420-1

Vulnerability from csaf_opensuse - Published: 2026-08-01 00:00 - Updated: 2026-09-16 21:24

Summary

python313-asteval-1.0.9-1.1 on GA media

Severity

Moderate

Notes

Title of the patch: python313-asteval-1.0.9-1.1 on GA media

Description of the patch: These are all security issues fixed in the python313-asteval-1.0.9-1.1 package on the GA media of openSUSE Tumbleweed.

Patchnames: openSUSE-Tumbleweed-2026-11420

CVE-2026-55244

Affected products

Recommended 8 products

Product	Version	Remediation
Unresolved product id: openSUSE Tumbleweed:python313-asteval-1.0.9-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-asteval-1.0.9-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-asteval-1.0.9-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python313-asteval-1.0.9-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-asteval-1.0.9-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-asteval-1.0.9-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-asteval-1.0.9-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:python314-asteval-1.0.9-1.1.x86_64	—	Vendor Fix

Threats

Impact important

References

5 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://www.suse.com/security/cve/CVE-2026-55244/	self
https://www.suse.com/security/cve/CVE-2026-55244	external
https://bugzilla.suse.com/1236405	external

JSON

To clipboard

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}

CVE-2026-55244 (GCVE-0-2026-55244)

Vulnerability from cvelistv5 – Published: 2026-09-14 20:00 – Updated: 2026-09-16 16:17

Title

ASTEVAL: Sandbox Escape via BaseException Subclasses

Summary

ASTEVAL is an evaluator of Python expressions and statements. Prior to 1.0.9, FROM_PY in asteval/astutils.py exposes BaseException, SystemExit, KeyboardInterrupt, and GeneratorExit to expressions evaluated by asteval.Interpreter.eval(), while run() and eval() in asteval/asteval.py catch Exception rather than these non-Exception BaseException subclasses. When an attacker-controlled expression raises one of these classes, on_raise() passes the class to raise_exception(), and the resulting exception bypasses the interpreter's safety handlers and propagates into the calling application. A consuming service that evaluates untrusted expressions can therefore be terminated or have signal and cleanup handling disrupted, causing denial of service. The separately documented read-only open() capability is not part of this vulnerability. This issue is fixed in version 1.0.9.

Severity

5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 16:17 UTC

CWE

CWE-248 - Uncaught Exception

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/lmfit/asteval/security/advisor…	x_refsource_CONFIRM
https://github.com/lmfit/asteval/pull/153	x_refsource_MISC
https://github.com/lmfit/asteval/commit/9c625b367…	x_refsource_MISC
https://github.com/lmfit/asteval/commit/c49c99a67…	x_refsource_MISC
https://github.com/lmfit/asteval/releases/tag/1.0.9	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
lmfit	asteval	Affected: < 1.0.9

Show details on NVD website

JSON

To clipboard

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        }
      ],
      "source": {
        "advisory": "GHSA-89v8-rhwq-hf77",
        "discovery": "UNKNOWN"
      },
      "title": "ASTEVAL: Sandbox Escape via BaseException Subclasses"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-55244",
    "datePublished": "2026-09-14T20:00:24.584Z",
    "dateReserved": "2026-06-16T16:44:00.624Z",
    "dateUpdated": "2026-09-16T16:17:50.777Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.