CVE-2026-88367

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-24. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.5Exploit: Elevated riskExposed services: Not assessed

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

NanoSVG 239e102ec contains an incorrect numeric conversion vulnerability in nsvg__curveDivs() during SVG stroke rasterization. A specially crafted SVG document containing an extremely large stroke-width can cause floating-point rounding to produce a zero subdivision angle. The subsequent arc division yields infinity, which is converted to int without range validation, resulting in undefined behavior and process termination, leading to denial of service.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
14th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 24, 2026

Last Modified

September 25, 2026

Advisory Details (1)

Auto-updated Sep 25, 2026
No patch confirmed yet.
generic

[Bug]stroke-tessellation count overflow: huge stroke-width turns acosf argument to 1.0f, making arc/da infinity and overflowing the (int) cast in nsvg__curveDivs (CWE-681) · Issue #293 · memononen/nanosvg · GitHub

https://github.com/memononen/nanosvg/issues/293

Vendor Advisories for CVE-2026-88367(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 35× 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.

  1. 2026-10-05 03:34 UTCEG score recompute
  2. 2026-10-05 03:34 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 05:04 UTCEG score recompute
  5. 2026-10-04 05:04 UTCGHSA enrichment
  6. 2026-10-03 06:36 UTCEG score recompute
  7. 2026-10-03 06:36 UTCGHSA enrichment
  8. 2026-10-02 08:07 UTCEG score recompute
  9. 2026-10-02 08:07 UTCGHSA enrichment
  10. 2026-10-01 19:51 UTCEPSS rescore
  11. 2026-10-01 09:38 UTCEG score recompute
  12. 2026-10-01 09:38 UTCGHSA enrichment
  13. 2026-09-30 15:04 UTCEPSS rescore
  14. 2026-09-30 11:10 UTCEG score recompute
  15. 2026-09-30 11:09 UTCGHSA enrichment
  16. 2026-09-29 12:40 UTCEG score recompute
  17. 2026-09-29 12:40 UTCGHSA enrichment
  18. 2026-09-28 14:11 UTCEG score recompute
  19. 2026-09-28 14:11 UTCGHSA enrichment
  20. 2026-09-28 13:52 UTCEPSS rescore
  21. 2026-09-27 15:41 UTCEG score recompute
  22. 2026-09-27 15:41 UTCGHSA enrichment
  23. 2026-09-27 13:48 UTCEPSS rescore
  24. 2026-09-26 17:12 UTCEG score recompute
  25. 2026-09-26 17:12 UTCGHSA enrichment
Show 10 more
  1. 2026-09-26 15:59 UTCEPSS rescore
  2. 2026-09-25 18:40 UTCEG score recompute
  3. 2026-09-25 18:40 UTCGHSA enrichment
  4. 2026-09-25 18:15 UTCEG score recompute▲ 6.50
  5. 2026-09-25 18:15 UTCGHSA enrichment
  6. 2026-09-25 18:14 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  7. 2026-09-24 21:16 UTCGHSA enrichment
  8. 2026-09-24 17:33 UTCNVD update
  9. 2026-09-24 16:31 UTCEG score recompute
  10. 2026-09-24 16:26 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-88367?
CVE-2026-88367 is a medium vulnerability published on September 24, 2026. NanoSVG 239e102ec contains an incorrect numeric conversion vulnerability in nsvgcurveDivs() during SVG stroke rasterization. A specially crafted SVG document containing an extremely large stroke-width can cause floating-point rounding to produce a zero subdivision angle. The subsequent arc division…
When was CVE-2026-88367 disclosed?
CVE-2026-88367 was first published on September 24, 2026, with the most recent update on September 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-88367 actively exploited?
CVE-2026-88367 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-88367?
CVE-2026-88367 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-88367?
No fix for CVE-2026-88367 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-88367 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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