CVE-2026-45758

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-19. the CNA's CVSS baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:github_m, epss, ghsa
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.6Exploit: NoneExposed: 0

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

Guardrails AI is a Python framework that helps build AI applications. On May 11, 2026 at approximately 6:00 PM Pacific, an attacker published a malicious version of guardrails-ai (0.10.1) to PyPI. Aany user who installed guardrails-ai==0.10.1 from PyPI on May 11, 2026 may be affected. Security researchers identified the malicious package within approximately 2 hours of publication, and PyPI quarantined the repository. Based on our telemetry, Guardrails AI maintainers have observed no requests to Guardrails AI infrastructure originating from the malicious 0.10.1 version, and a review of system and access logs has produced no evidence of user data exfiltration through their systems. Users should upgrade to version 0.10.2 or downgrade to version 0.10.0, both of which are unaffected. Those who installed version 0.10.1 should rotate any credentials accessible from their machine (GitHub PATs, cloud provider keys, package registry tokens, API keys) and audit their GitHub account for unauthorized workflows or repositories.

CVSS v3
9.6
EG Score
9.6(medium)
EPSS
19.4%
KEV
Not listed

Published

May 19, 2026

Last Modified

June 8, 2026

Advisory Details (3)

Auto-updated Jun 5, 2026
Patch available. Sources: github.
github Patch Available

Malicious code in guardrails-ai 0.10.1 (supply chain compromise) · Advisory · guardrails-ai/guardrails · GitHub

https://github.com/guardrails-ai/guardrails/security/advisories/GHSA-xmpw-2vmm-p4p6
generic

[SECURITY] Supply Chain Compromise in guardrails-ai v0.10.1 on PyPI · Issue #1473 · guardrails-ai/guardrails · GitHub

https://github.com/guardrails-ai/guardrails/issues/1473
generic

guardrails/SECURITY_ADVISORY.md at main · guardrails-ai/guardrails · GitHub

https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md

Vendor Advisories for CVE-2026-45758(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
pipguardrails-ai—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)
PyPI(1)
PackageVulnerable rangeFixed inDependents
guardrails-ai0.1.0 ... 0.9.3 (104 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 128× 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 248 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45758?
CVE-2026-45758 is a critical vulnerability published on May 19, 2026. Guardrails AI is a Python framework that helps build AI applications. On May 11, 2026 at approximately 6:00 PM Pacific, an attacker published a malicious version of guardrails-ai (0.10.1) to PyPI. Aany user who installed guardrails-ai==0.10.1 from PyPI on May 11, 2026 may be affected. Security…
When was CVE-2026-45758 disclosed?
CVE-2026-45758 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on June 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45758 actively exploited?
CVE-2026-45758 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45758?
CVE-2026-45758 has a CVSS v4.0 base score of 9.6 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-45758?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45758, 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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