CVE-2026-45758

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-19. a secondary CVSS source baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.6Exploit: None knownExposed services: Not assessed

A fixed version is listed under Patch Availability — apply it.

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
9.6CRITICALmedium confidence
EG Risk
43
EG Risk 43/100

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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

Published

May 19, 2026

Last Modified

July 23, 2026

Advisory Details (3)

Auto-updated Oct 7, 2026
Fixed version listed under Patch Availability. Sources: github.
githubMentions a patch (unverified)

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
guardrails-ai0.1.0 ... 0.9.3 (104 versions)
  • every version through 0.10.1: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 21× 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 310 total refreshes for this CVE.

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

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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 on May 19, 2026, with the most recent update on July 23, 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 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45758?
CVE-2026-45758 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-45758?
A fixed version for CVE-2026-45758 is listed under Patch Availability on this page: update to the version listed for your package. The vendor advisories EchelonGraph has for CVE-2026-45758 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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