CVE-2026-36045

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. NVD baseline CVSS 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.3Exploit: Elevated riskExposed: 0

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

picoclaw <=v0.1.2 and earlier is vulnerable to OS command injection via the ExecTool component (pkg/tools/shell.go). The guardCommand() function attempts to restrict shell command execution using a denylist of 8 regular expressions, but the denylist is incomplete.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

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
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
69%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 1, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
🔬 Proof of concept available. Patch available. Sources: github_release.
generic🟡 PoC Available

CVE-2026-36045: picoclaw ExecTool `guardCommand()` Incomplete Denylist leads to OS Command Injection · GitHub

https://gist.github.com/NucleiAv/41899be6266a9813840301577792ed68
github_release Patch Available

v0.1.2

Patch available: sipeed/picoclaw v0.1.2

https://github.com/sipeed/picoclaw/releases/tag/v0.1.2

Vendor Advisories for CVE-2026-36045(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
gogithub.com/sipeed/picoclaw—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/sipeed/picoclaw———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 61× 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 221 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:53 UTCEPSS rescore
  4. 2026-09-01 04:39 UTCEPSS rescore
  5. 2026-08-30 19:17 UTCEPSS rescore
  6. 2026-08-30 01:22 UTCEPSS rescore
  7. 2026-08-28 21:41 UTCEPSS rescore
  8. 2026-08-27 14:25 UTCEPSS rescore
  9. 2026-08-26 14:46 UTCEPSS rescore
  10. 2026-08-25 13:49 UTCEPSS rescore
  11. 2026-08-23 15:53 UTCEG score recompute
  12. 2026-08-23 15:53 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 21:17 UTCEG score recompute
  16. 2026-08-21 21:17 UTCGHSA enrichment
  17. 2026-08-20 22:55 UTCEPSS rescore
  18. 2026-08-20 17:56 UTCEG score recompute
  19. 2026-08-20 17:56 UTCGHSA enrichment
  20. 2026-08-19 17:03 UTCEPSS rescore
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-17 13:47 UTCEPSS rescore
  23. 2026-08-17 09:29 UTCGHSA enrichment
  24. 2026-08-16 16:29 UTCEG score recompute
  25. 2026-08-16 16:29 UTCGHSA enrichment
Show 75 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 03:01 UTCEG score recompute
  3. 2026-08-16 03:01 UTCGHSA enrichment
  4. 2026-08-16 02:14 UTCEPSS rescore
  5. 2026-08-15 01:30 UTCEPSS rescore
  6. 2026-08-15 01:19 UTCGHSA enrichment
  7. 2026-08-14 13:30 UTCGHSA enrichment
  8. 2026-08-14 01:39 UTCEG score recompute
  9. 2026-08-14 01:39 UTCGHSA enrichment
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-13 01:44 UTCGHSA enrichment
  12. 2026-08-12 13:55 UTCEG score recompute
  13. 2026-08-12 13:55 UTCGHSA enrichment
  14. 2026-08-12 13:50 UTCEPSS rescore
  15. 2026-08-12 01:27 UTCEG score recompute
  16. 2026-08-12 01:27 UTCGHSA enrichment
  17. 2026-08-11 13:39 UTCGHSA enrichment
  18. 2026-08-11 00:19 UTCEG score recompute
  19. 2026-08-11 00:19 UTCGHSA enrichment
  20. 2026-08-11 00:00 UTCEPSS rescore
  21. 2026-08-10 10:56 UTCGHSA enrichment
  22. 2026-08-09 22:46 UTCEG score recompute
  23. 2026-08-09 22:45 UTCGHSA enrichment
  24. 2026-08-09 13:46 UTCEPSS rescore
  25. 2026-08-09 10:57 UTCGHSA enrichment
  26. 2026-08-08 23:07 UTCEG score recompute
  27. 2026-08-08 23:07 UTCGHSA enrichment
  28. 2026-08-08 16:37 UTCEPSS rescore
  29. 2026-08-08 08:02 UTCGHSA enrichment
  30. 2026-08-07 20:14 UTCEG score recompute
  31. 2026-08-07 20:14 UTCGHSA enrichment
  32. 2026-08-07 08:25 UTCGHSA enrichment
  33. 2026-08-06 20:36 UTCEG score recompute
  34. 2026-08-06 20:36 UTCGHSA enrichment
  35. 2026-08-06 13:46 UTCEPSS rescore
  36. 2026-08-06 08:48 UTCGHSA enrichment
  37. 2026-08-05 21:00 UTCEG score recompute
  38. 2026-08-05 21:00 UTCGHSA enrichment
  39. 2026-08-05 19:17 UTCEPSS rescore
  40. 2026-08-04 15:10 UTCEPSS rescore
  41. 2026-08-04 10:38 UTCEPSS rescore
  42. 2026-08-04 04:26 UTCGHSA enrichment
  43. 2026-08-03 16:38 UTCEG score recompute
  44. 2026-08-03 16:38 UTCGHSA enrichment
  45. 2026-08-03 10:36 UTCEPSS rescore
  46. 2026-08-03 03:39 UTCGHSA enrichment
  47. 2026-08-02 15:48 UTCGHSA enrichment
  48. 2026-08-02 03:59 UTCEG score recompute
  49. 2026-08-02 03:59 UTCGHSA enrichment
  50. 2026-08-02 02:27 UTCEPSS rescore
  51. 2026-08-01 16:10 UTCEG score recompute
  52. 2026-08-01 16:10 UTCGHSA enrichment
  53. 2026-08-01 04:16 UTCEPSS rescore
  54. 2026-07-31 09:19 UTCEG score recompute
  55. 2026-07-31 09:19 UTCGHSA enrichment
  56. 2026-07-30 16:28 UTCEPSS rescore
  57. 2026-07-30 01:30 UTCEPSS rescore
  58. 2026-07-29 16:30 UTCEG score recompute
  59. 2026-07-29 16:30 UTCGHSA enrichment
  60. 2026-07-27 14:13 UTCEPSS rescore
  61. 2026-07-26 14:54 UTCEPSS rescore
  62. 2026-07-26 14:54 UTCEPSS rescore
  63. 2026-07-25 14:18 UTCEPSS rescore
  64. 2026-07-25 14:18 UTCEPSS rescore
  65. 2026-07-24 14:17 UTCEPSS rescore
  66. 2026-07-24 14:17 UTCEPSS rescore
  67. 2026-07-23 14:18 UTCEPSS rescore
  68. 2026-07-23 14:18 UTCEPSS rescore
  69. 2026-07-23 03:10 UTCEG score recompute
  70. 2026-07-22 14:08 UTCEPSS rescore
  71. 2026-07-21 15:24 UTCEPSS rescore
  72. 2026-07-20 17:08 UTCEPSS rescore
  73. 2026-07-19 14:31 UTCEPSS rescore
  74. 2026-07-19 05:52 UTCOSV refresh
  75. 2026-07-19 02:29 UTCEPSS rescore

Related CVEs(same product + same CWE)

Same product

1 shown

go:github.com/sipeed/picoclaw

Frequently asked(5)

What is CVE-2026-36045?
CVE-2026-36045 is a high vulnerability published on May 27, 2026. picoclaw <=v0.1.2 and earlier is vulnerable to OS command injection via the ExecTool component (pkg/tools/shell.go). The guardCommand() function attempts to restrict shell command execution using a denylist of 8 regular expressions, but the denylist is incomplete.
When was CVE-2026-36045 disclosed?
CVE-2026-36045 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-36045 actively exploited?
CVE-2026-36045 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 31.2% of all scored CVEs.
What is the CVSS score of CVE-2026-36045?
CVE-2026-36045 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-36045?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-36045, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-36045

Explore →

Is Your Infrastructure Affected by CVE-2026-36045?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs