# CVE-2022-3500: Keylime: unhandled exceptions could lead to invalid attestation states

Source: https://junglewise.ai/threats/cve-2022-3500-keylime-unhandled-exceptions-could-lead-to-invalid-attestation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-11-22  
License: CC BY 4.0 with a link back

CVE-2022-3500 · Severity: low · CVSS 3.1 · Published 2022-11-22

A vulnerability was found in keylime. This security issue happens in some circumstances, due to some improperly handled exceptions, there exists the possibility that a rogue agent could create errors on the verifier that stopped attestation attempts for that host leaving it in an attested state but not verifying that anymore.

Technologies: [keylime (PyPI)](https://junglewise.ai/threats/technologies/keylime). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2022-3500 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2022-3500 being exploited in the wild.

**How severe is CVE-2022-3500?** Low severity, with a CVSS score of 3.1, published 22 November 2022.

**Which products and versions are affected?** keylime (PyPI) ECOSYSTEM:introduced=0,fixed=6.5.1.

**Is there a fix for CVE-2022-3500?** Yes. keylime (PyPI): upgrade to 6.5.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2022-3500?** Check whether you run keylime (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- keylime (PyPI): upgrade to 6.5.1 or later

  ```sh
  pip install "keylime>=6.5.1"
  ```


## Affected products

- keylime (PyPI) ECOSYSTEM:introduced=0,fixed=6.5.1

## Identifiers

- CVE-2022-3500
- GHSA-hff2-x2j9-gxgv
- PYSEC-2022-42995

## Related threats

- [PYSEC-2026-1489 - Keylime's registrar vulnerable to Denial-of-service attack via a single open connection](https://junglewise.ai/threats/cve-2023-38200-keylime-s-registrar-vulnerable-to-denial-of-service-attack-via-a)
- [Keylime security bypass via hardcoded TPM attestation nonce](https://junglewise.ai/threats/keylime-security-bypass-via-hardcoded-tpm-attestation-nonce-16dcb84a)
- [Keylime security bypass via hardcoded TPM quote nonce](https://junglewise.ai/threats/cve-2026-6420-keylime-security-bypass-via-hardcoded-tpm-quote-nonce)
- [Keylime registrar authentication bypass via missing TLS validation](https://junglewise.ai/threats/keylime-registrar-authentication-bypass-via-missing-tls-validation-f26498d5)
- [Keylime authentication bypass in registrar component](https://junglewise.ai/threats/cve-2026-1709-keylime-authentication-bypass-in-registrar-component)