Home/CVE/A ReDoS issue was discovered in pygments/lexers/smithy.py in pygments through 2.15.0 via SmithyLexer.
CVE

CVE-2022-40896

A ReDoS issue was discovered in pygments/lexers/smithy.py in pygments through 2.15.0 via SmithyLexer.

A ReDoS issue was discovered in pygments/lexers/smithy.py in pygments through 2.15.0 via SmithyLexer.

MEDIUM · CVSS 5.5 EPSS 0.00069
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-434Unrestricted Upload of File with Dangerous Type
▤

Affected Products & Versions

1
pygments<= 2.15.0
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI pygments MODERATE fixed in 2.15.0
⚠

Public Exploits & PoCs

1
pocpyup.io · pyup-discovers-redos-vulnerabilities-in-top-python-packag...pyup.io
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Jul 2023 · 03:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

6
msrcCVE-2022-40896
usnUSN-7128-1
rhsaRHSA-2024:1057Important
rhsaRHSA-2024:2010Moderate
rhsaRHSA-2024:1072Moderate
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/pygments/pygments/blob/master/pygments/lexers/smithy.py#L61Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZGMXALE3HSP4OXC7UUWIKX3OXKZDTY3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZO4BQCIY2S2KZYHERQMKURB7AHXDBO/
https://pypi.org/project/Pygments/Product
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZGMXALE3HSP4OXC7UUWIKX3OXKZDTY3/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUZO4BQCIY2S2KZYHERQMKURB7AHXDBO/
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