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Vulnerability record · CVE-2023-27586 · published 20 March 2023

CVE-2023-27586: Courtbouillon cairosvg improper input validation vulnerability

Courtbouillon · Cairosvg

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to version 2.7.0, Cairo can send requests to external hosts when processing SVG files. A malicious actor could send a specially crafted SVG file that allows them to perform a server-side request forgery or denial of service. Version 2.7.0 disables CairoSVG's ability to access other files online by default.

7.1 CVSS 3.1 High EPSS 0.72% · top 47.9% CWE-20 · Improper input validationCWE-918 · Server-side request forgery (SSRF)
7.1CVSS 3.1 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to version 2.7.0, Cairo can send requests to external hosts when processing SVG files. A malicious actor could send a specially crafted SVG file that allows them to perform a server-side request forgery or denial of service. Version 2.7.0 disables CairoSVG's ability to access other files online by default.

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

Affected products

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

References

LinkTags
https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255 Patch
https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53 Patch
https://github.com/Kozea/CairoSVG/releases/tag/2.7.0 Release Notes
https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv Vendor Advisory
https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255 Patch
https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53 Patch
https://github.com/Kozea/CairoSVG/releases/tag/2.7.0 Release Notes
https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-27586), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.