CVE-2026-41507

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 69% 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
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

math-codegen generates code from mathematical expressions. Prior to version 0.4.3, string literal content passed to cg.parse() is injected verbatim into a new Function() body without sanitization. This allows an attacker to execute arbitrary system commands when user-controlled input reaches the parser. Any application exposing a math evaluation endpoint where user input flows into cg.parse() is vulnerable to full RCE. This issue has been patched in version 0.4.3.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
31.4%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 12, 2026

Advisory Details (3)

Auto-updated May 8, 2026
Patch available. Sources: github.
github Patch Available

Remote Code Execution (RCE) via String Literal Injection into math-codegen · Advisory · mauriciopoppe/math-codegen · GitHub

https://github.com/mauriciopoppe/math-codegen/security/advisories/GHSA-p6x5-p4xf-cc4r
generic

fix: improve code generation safety by mauriciopoppe · Pull Request #11 · mauriciopoppe/math-codegen · GitHub

https://github.com/mauriciopoppe/math-codegen/pull/11
generic

fix: improve code generation safety · mauriciopoppe/math-codegen@4bb52d3 · GitHub

https://github.com/mauriciopoppe/math-codegen/commit/4bb52d3030683362b3559ee8dd91350555a05f6b

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
math-codegen—0.4.3—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 49× 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 161 total refreshes for this CVE.

  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
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  1. 2026-06-22 14:25 UTCEPSS rescore
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  74. 2026-06-05 13:14 UTCEG score recompute
  75. 2026-06-05 09:05 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-41507?
CVE-2026-41507 is a critical vulnerability published on May 8, 2026. math-codegen generates code from mathematical expressions. Prior to version 0.4.3, string literal content passed to cg.parse() is injected verbatim into a new Function() body without sanitization. This allows an attacker to execute arbitrary system commands when user-controlled input reaches the…
When was CVE-2026-41507 disclosed?
CVE-2026-41507 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41507 actively exploited?
CVE-2026-41507 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-41507?
CVE-2026-41507 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-41507?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41507, 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.

Dependency Blast Radius

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