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Vulnerability record · CVE-2015-8557 · published 8 January 2016

CVE-2015-8557: Canonical ubuntu linux os command injection vulnerability

Canonical · Ubuntu Linux

The FontManager._get_nix_font_path function in formatters/img.py in Pygments 1.2.2 through 2.0.2 allows remote attackers to execute arbitrary commands via shell metacharacters in a font name.

9.0 CVSS 3.0 Critical EPSS 6.7% · top 6.3% CWE-78 · OS command injection
9.0CVSS 3.0 base score, v2 9.3
6.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

The FontManager._get_nix_font_path function in formatters/img.py in Pygments 1.2.2 through 2.0.2 allows remote attackers to execute arbitrary commands via shell metacharacters in a font name.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/133823/Pygments-FontManager._get_nix_font_path-Shell-Injection.html
http://seclists.org/fulldisclosure/2015/Oct/4
http://www.debian.org/security/2016/dsa-3445
http://www.openwall.com/lists/oss-security/2015/12/14/17
http://www.openwall.com/lists/oss-security/2015/12/14/6
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
http://www.ubuntu.com/usn/USN-2862-1
https://bitbucket.org/birkenfeld/pygments-main/pull-requests/501/fix-shell-injection-in/diff Vendor Advisory
https://security.gentoo.org/glsa/201612-05
http://packetstormsecurity.com/files/133823/Pygments-FontManager._get_nix_font_path-Shell-Injection.html
http://seclists.org/fulldisclosure/2015/Oct/4
http://www.debian.org/security/2016/dsa-3445
http://www.openwall.com/lists/oss-security/2015/12/14/17
http://www.openwall.com/lists/oss-security/2015/12/14/6
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
http://www.ubuntu.com/usn/USN-2862-1
https://bitbucket.org/birkenfeld/pygments-main/pull-requests/501/fix-shell-injection-in/diff Vendor Advisory
https://security.gentoo.org/glsa/201612-05

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Source: NIST National Vulnerability Database (record CVE-2015-8557), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.