GHSA-pq64-v7f5-gqh8

Source

https://github.com/advisories/GHSA-pq64-v7f5-gqh8

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-pq64-v7f5-gqh8/GHSA-pq64-v7f5-gqh8.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-pq64-v7f5-gqh8

Aliases

Published

2021-03-29T16:33:03Z

Modified

2024-10-14T18:37:22.654676Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Pygments vulnerable to Regular Expression Denial of Service (ReDoS)

Details

In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.

Database specific

{
    "cwe_ids": [
        "CWE-400"
    ],
    "github_reviewed": true,
    "nvd_published_at": "2021-03-17T13:15:00Z",
    "github_reviewed_at": "2021-03-22T20:28:40Z",
    "severity": "HIGH"
}

References

Affected packages

PyPI / pygments

Package

Name: pygments; View open source insights on deps.dev
Purl: pkg:pypi/pygments

Affected ranges

Type: ECOSYSTEM
Events: Introduced

1.1

Fixed

2.7.4

Affected versions

1.*

1.1

1.1.1

1.2

1.2.1

1.2.2

1.3

1.3.1

1.4

1.5

1.6rc1

1.6

2.*

2.0rc1

2.0

2.0.1

2.0.2

2.1

2.1.1

2.1.2

2.1.3

2.2.0

2.3.0

2.3.1

2.4.0

2.4.1

2.4.2

2.5.1

2.5.2

2.6.0

2.6.1

2.7.0

2.7.1

2.7.2

2.7.3