CVE-2026-59954

Apollo ConfigService access key authentication bypass via appId parsing and non-canonical matching

State
Published
Severity
7.5 High
Published
Jul 15, 2026
Updated
Jul 15, 2026
Reserved
Jul 7, 2026

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Description

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 configuration data when AccessKey or management key authentication is enabled because ConfigService can accept a non-canonical appId variant during authentication while downstream request handling resolves it to the protected app, including accent variants under accent-insensitive collations or trailing-space variants under PAD SPACE collations on /configs and /configfiles endpoints. This issue is fixed in version 2.5.2.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NGitHub_M

Weaknesses

Affected Products

ProductVersions
apolloapolloconfig
  • < 2.5.2Affected

References

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