### Impact On May 11, 2026 at approximately 6:00 PM Pacific, an attacker published a malicious version of `guardrails-ai` (0.10.1) to PyPI. **Affected:** any user who installed `guardrails-ai==0.10.1` from PyPI on May 11, 2026. Security researchers identified the malicious package within approximately 2 hours of publication, and PyPI quarantined the repository. Based on our telemetry, we 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 our systems. For the full timeline, technical details, and remediation steps we have taken, see [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md). ### Patches No patched version above 0.10.1 is available yet. **Downgrade to `0.10.0`**, which is unaffected. ### Workarounds **1. Pin to a safe version:** `guardrails-ai==0.10.0` **2. While the PyPI quarantine is active, install from GitHub:** `pip install git+https://github.com/guardrails-ai/[email protected]` The `v0.10.0` tag in this repository is clean. Track quarantine status here: [#1473](https://github.com/guardrails-ai/guardrails/issues/1473). **3. If you installed 0.10.1, treat the host as potentially compromised.** Rotate any credentials accessible from that machine (GitHub PATs, cloud provider keys, package registry tokens, API keys) and audit your GitHub account for unauthorized workflows or repositories. **4. Snowglobe and Guardrails Hub users :** all Snowglobe and Guardrails Hub API keys will be invalidated at 2:00 PM Pacific on May 13, 2026. Rotate yours before then to avoid service interruption. ### References - Full advisory, timeline, and remediation details: [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md)
### Impact On May 11, 2026 at approximately 6:00 PM Pacific, an attacker published a malicious version of `guardrails-ai` (0.10.1) to PyPI. **Affected:** any user who installed `guardrails-ai==0.10.1` from PyPI on May 11, 2026. Security researchers identified the malicious package within approximately 2 hours of publication, and PyPI quarantined the repository. Based on our telemetry, we 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 our systems. For the full timeline, technical details, and remediation steps we have taken, see [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md). ### Patches No patched version above 0.10.1 is available yet. **Downgrade to `0.10.0`**, which is unaffected. ### Workarounds **1. Pin to a safe version:** `guardrails-ai==0.10.0` **2. While the PyPI quarantine is active, install from GitHub:** `pip install git+https://github.com/guardrails-ai/[email protected]` The `v0.10.0` tag in this repository is clean. Track quarantine status here: [#1473](https://github.com/guardrails-ai/guardrails/issues/1473). **3. If you installed 0.10.1, treat the host as potentially compromised.** Rotate any credentials accessible from that machine (GitHub PATs, cloud provider keys, package registry tokens, API keys) and audit your GitHub account for unauthorized workflows or repositories. **4. Snowglobe and Guardrails Hub users :** all Snowglobe and Guardrails Hub API keys will be invalidated at 2:00 PM Pacific on May 13, 2026. Rotate yours before then to avoid service interruption. ### References - Full advisory, timeline, and remediation details: [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md)
Monitor this advisory for an available fix and review any installs of the affected package.
Local check
hol-guard supply-chain scanMalicious code in guardrails-ai 0.10.1 (supply chain compromise) affects guardrails-ai (pip). Severity is critical. ### Impact On May 11, 2026 at approximately 6:00 PM Pacific, an attacker published a malicious version of `guardrails-ai` (0.10.1) to PyPI. **Affected:** any user who installed `guardrails-ai==0.10.1` from PyPI on May 11, 2026. Security researchers identified the malicious package within approximately 2 hours of publication, and PyPI quarantined the repository. Based on our telemetry, we 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 our systems. For the full timeline, technical details, and remediation steps we have taken, see [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md). ### Patches No patched version above 0.10.1 is available yet. **Downgrade to `0.10.0`**, which is unaffected. ### Workarounds **1. Pin to a safe version:** `guardrails-ai==0.10.0` **2. While the PyPI quarantine is active, install from GitHub:** `pip install git+https://github.com/guardrails-ai/[email protected]` The `v0.10.0` tag in this repository is clean. Track quarantine status here: [#1473](https://github.com/guardrails-ai/guardrails/issues/1473). **3. If you installed 0.10.1, treat the host as potentially compromised.** Rotate any credentials accessible from that machine (GitHub PATs, cloud provider keys, package registry tokens, API keys) and audit your GitHub account for unauthorized workflows or repositories. **4. Snowglobe and Guardrails Hub users :** all Snowglobe and Guardrails Hub API keys will be invalidated at 2:00 PM Pacific on May 13, 2026. Rotate yours before then to avoid service interruption. ### References - Full advisory, timeline, and remediation details: [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md)
AI coding agents often install or upgrade packages automatically in pip. A critical vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| guardrails-aipip | =0.10.1 | Not reported |
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL GuardMonitor this advisory for an available fix and review any installs of the affected package.
Local check
hol-guard supply-chain scanMalicious code in guardrails-ai 0.10.1 (supply chain compromise) affects guardrails-ai (pip). Severity is critical. ### Impact On May 11, 2026 at approximately 6:00 PM Pacific, an attacker published a malicious version of `guardrails-ai` (0.10.1) to PyPI. **Affected:** any user who installed `guardrails-ai==0.10.1` from PyPI on May 11, 2026. Security researchers identified the malicious package within approximately 2 hours of publication, and PyPI quarantined the repository. Based on our telemetry, we 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 our systems. For the full timeline, technical details, and remediation steps we have taken, see [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md). ### Patches No patched version above 0.10.1 is available yet. **Downgrade to `0.10.0`**, which is unaffected. ### Workarounds **1. Pin to a safe version:** `guardrails-ai==0.10.0` **2. While the PyPI quarantine is active, install from GitHub:** `pip install git+https://github.com/guardrails-ai/[email protected]` The `v0.10.0` tag in this repository is clean. Track quarantine status here: [#1473](https://github.com/guardrails-ai/guardrails/issues/1473). **3. If you installed 0.10.1, treat the host as potentially compromised.** Rotate any credentials accessible from that machine (GitHub PATs, cloud provider keys, package registry tokens, API keys) and audit your GitHub account for unauthorized workflows or repositories. **4. Snowglobe and Guardrails Hub users :** all Snowglobe and Guardrails Hub API keys will be invalidated at 2:00 PM Pacific on May 13, 2026. Rotate yours before then to avoid service interruption. ### References - Full advisory, timeline, and remediation details: [SECURITY_ADVISORY.md](https://github.com/guardrails-ai/guardrails/blob/main/SECURITY_ADVISORY.md)
AI coding agents often install or upgrade packages automatically in pip. A critical vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| guardrails-aipip | =0.10.1 | Not reported |
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard