What’s Vulnerable › Vulnerabilities

CVE-2022-46146: Prometheus Exporter Toolkit vulnerable to basic authentication bypass

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-11-29 · updated 2026-06-17
• Weakness: CWE-287

Description

Prometheus Exporter Toolkit is a utility package to build exporters. Prior to versions 0.7.2 and 0.8.2, if someone has access to a Prometheus web.yml file and users' bcrypted passwords, they can bypass security by poisoning the built-in authentication cache. Versions 0.7.2 and 0.8.2 contain a fix for the issue. There is no workaround, but attacker must have access to the hashed password to use this functionality.

Affected products

• prometheus exporter-toolkit: before 0.7.2; from 0.8.0 before 0.8.2 — fixed in 0.7.2, 0.8.2

How to fix

Upgrade to a fixed version: prometheus exporter-toolkit 0.7.2, 0.8.2. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2022/11/29/1
• http://www.openwall.com/lists/oss-security/2022/11/29/2
• http://www.openwall.com/lists/oss-security/2022/11/29/4
• https://github.com/prometheus/exporter-toolkit/commit/5b1eab34484ddd353986bce736cd119d863e4ff5
• https://github.com/prometheus/exporter-toolkit/security/advisories/GHSA-7rg2-cxvp-9p7p
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JRSHISR64L6QGSMDFZDNPHHIXSCAKK26/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UH24VXIB25OGHF4VGY4PLZMTGTI3BHCA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ULVDTAI76VATRAHTKCE2SUJ4NC3PQZ6Y/
• https://security.gentoo.org/glsa/202401-15
• http://www.openwall.com/lists/oss-security/2022/11/29/1
• http://www.openwall.com/lists/oss-security/2022/11/29/2
• http://www.openwall.com/lists/oss-security/2022/11/29/4

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