CVE-2023-27586

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 50% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.9
EG Score
9.9(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity99% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
50.2%
KEV
Not listed

Published

March 20, 2023

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Jul 21, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available

SSRF & DOS vulnerability · Advisory · Kozea/CairoSVG · GitHub

https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv
github_release Patch Available

2.7.0

Patch available: Kozea/CairoSVG 2.7.0

https://github.com/Kozea/CairoSVG/releases/tag/2.7.0
github_commit Patch Available

commit 33007d4af919 (Kozea/CairoSVG)

Patch available: Kozea/CairoSVG 2.7.0 (contains commit 33007d4af919)

https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53
github_commit Patch Available

commit 12d31c653c02 (Kozea/CairoSVG)

Patch available: Kozea/CairoSVG 2.7.0 (contains commit 12d31c653c02)

https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
cairosvg0.1 ... 2.6.0 (60 versions)2.7.0—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:20 UTCEG score recompute
  4. 2026-07-22 23:08 UTCEG score recompute
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  17. 2026-07-16 02:49 UTCOSV refresh
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  50. 2026-06-10 13:17 UTCOSV refresh
  51. 2026-06-08 14:15 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-27586?
CVE-2023-27586 is a critical vulnerability published on March 20, 2023. 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.…
When was CVE-2023-27586 disclosed?
CVE-2023-27586 was first published in the National Vulnerability Database on March 20, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-27586 actively exploited?
CVE-2023-27586 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-27586?
CVE-2023-27586 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2023-27586?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-27586, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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