CVE-2026-41507

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.7% (51st percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

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 (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation0.7% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
51st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 8, 2026

Last Modified

May 12, 2026

Advisory Details (3)

Auto-updated Oct 8, 2026
Patch available. Sources: github, github_commit, github_pr.
GitHub advisoryMentions a patch (unverified)

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
GitHub pull request Patch Available

fix: improve code generation safety

Patch available: mauriciopoppe/math-codegen v0.4.3 (PR #11 merged 2026-04-09)

https://github.com/mauriciopoppe/math-codegen/pull/11
GitHub commit Patch Available

commit 4bb52d303068 (mauriciopoppe/math-codegen)

Patch available: mauriciopoppe/math-codegen v0.4.3 (contains commit 4bb52d303068)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
math-codegen—
  • every version up to 0.4.3: fixed in 0.4.3
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 31× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 186 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 87 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  2. 2026-10-16 14:30 UTCEG score recompute
  3. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  4. 2026-10-15 14:59 UTCEG score recompute
  5. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  6. 2026-10-14 09:27 UTCEG score recompute
  7. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  8. 2026-10-13 06:57 UTCEG score recompute
  9. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-10-12 16:08 UTCEG score recompute
  11. 2026-10-11 19:50 UTCEG score recompute
  12. 2026-10-11 17:04 UTCEG score recompute
  13. 2026-10-11 14:30 UTCEG score recompute
  14. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  17. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  19. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  20. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  21. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  22. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  23. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  24. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  25. 2026-09-30 08:28 UTCOSV refresh
Show 74 more
  1. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  2. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  3. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  5. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  6. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  7. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  8. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  9. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  10. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  11. 2026-09-11 14:53 UTCOSV refresh
  12. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  15. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  22. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  25. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  26. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  27. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  28. 2026-08-23 19:20 UTCEG score recompute
  29. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  30. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  31. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  32. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  33. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  34. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  35. 2026-08-17 11:57 UTCEG score recompute
  36. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  37. 2026-08-16 04:39 UTCEG score recompute
  38. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  39. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  40. 2026-08-14 03:14 UTCEG score recompute
  41. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  42. 2026-08-12 16:49 UTCEG score recompute
  43. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  44. 2026-08-11 15:53 UTCEG score recompute
  45. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  46. 2026-08-11 01:20 UTCEG score recompute
  47. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  48. 2026-08-09 15:02 UTCEG score recompute
  49. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  50. 2026-08-09 02:26 UTCEG score recompute
  51. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  52. 2026-08-07 17:08 UTCEG score recompute
  53. 2026-08-06 16:52 UTCEG score recompute
  54. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  55. 2026-08-05 22:10 UTCEG score recompute
  56. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  57. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  58. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  59. 2026-08-03 19:33 UTCEG score recompute
  60. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  61. 2026-08-02 03:12 UTCEG score recompute
  62. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  63. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  64. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  65. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  66. 2026-07-28 15:36 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  67. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  68. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  69. 2026-07-25 14:18 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  70. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  71. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  72. 2026-07-23 03:11 UTCEG score recompute
  73. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  74. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.4% · 31st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-41507?
CVE-2026-41507 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-41507 published?
The CVE record for CVE-2026-41507 was published on May 8, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of May 12, 2026; the record at its source may have been updated since.
Is CVE-2026-41507 actively exploited?
CVE-2026-41507 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
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?
A fix for CVE-2026-41507 is available: update to the fixed version the vendor names in its advisory.

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