Auth bypass in Apolloconfig Apollo
CVE-2026-59955
Apollo is a reliable configuration management system suitable for microservice configuration management scenarios. Prior to 2.5.2, Apollo ConfigService may allow unauthorized access to raw configuration data when AccessKey or management key authentication is enabled because requests under /configfiles/raw/{appId}/{clusterName}/{namespace} are parsed for authentication as appId raw instead of the actual path appId, causing ConfigService to look up AccessKey secrets for raw before verifying the request signature and potentially continue without signature verification for the target appId. This issue is fixed in version 2.5.2.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.006 (44.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Apolloconfig Apollo — versions < 2.5.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-59955?
- CVE-2026-59955 is a high-severity vulnerability in Apolloconfig Apollo, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-07-15.
- How severe is CVE-2026-59955?
- High severity. CVSS v3 base score is 7.5 out of 10.