How severe is CVE-2023-27586?

CVE-2023-27586 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2023-27586 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27586?

CVE-2023-27586 affects Courtbouillon Cairosvg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27586?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-27586 published?

CVE-2023-27586 was published on 2023-03-20 and last updated on 2026-06-17.

CVE-2023-27586

CVE-2023-27586 is a critical-severity vulnerability in Courtbouillon Cairosvg with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Courtbouillon Cairosvg
Published: 2023-03-20
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-27586?: 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.
How severe is CVE-2023-27586?: CVE-2023-27586 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2023-27586 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27586?: CVE-2023-27586 affects Courtbouillon Cairosvg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27586?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-27586 published?: CVE-2023-27586 was published on 2023-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:courtbouillon:cairosvg:*:*:*:*:*:*:*:*

More vulnerabilities in Courtbouillon Cairosvg

CVE-2026-31899 — High (CVSS 7.5): CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of…
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