CVE-2026-45758 json
Malicious code in guardrails-ai 0.10.1 (supply chain compromise)
published 2026-05-19 5 mo ago modified 2026-07-23 3 mo ago also GHSA-xmpw-2vmm-p4p6 , PYSEC-2026-206 , EUVD-2026-34912
- cvss
- 9.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| OSV | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | guardrails-ai | 1 listed version <=0.10.1 |
no fix listed |
Affected products
- guardrails-ai guardrails
Classification
- Weakness
-
- CWE-506 Embedded Malicious Code
References
-
github.com
/guardrails-ai/guardrails/security/advisories/GHSA-xmpw-2vmm-p4p6
web, mitigation, vendor-advisory, advisory
-
github.com
/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md
web, vendor-advisory, advisory
-
github.com
/guardrails-ai/guardrails/issues/1473
web, issue-tracking, report
-
nvd.nist.gov
/vuln/detail/CVE-2026-45758
advisory
-
github.com
/guardrails-ai/guardrails
package
-
github.com
/pypa/advisory-database/tree/main/vulns/guardrails-ai/PYSEC-2026-206.yaml
web
Sources
- CVE List CVE-2026-45758
- GitHub Advisory GHSA-xmpw-2vmm-p4p6
- NVD CVE-2026-45758
- OSV PYSEC-2026-206
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