Apollo ConfigService access key authentication bypass via raw config file appId parsing

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Summary

CVECVE-2026-59955
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-15 17:16:51 UTC
Updated2026-07-15 19:18:34 UTC
DescriptionApollo 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.005490000 probability, percentile 0.422810000 (date 2026-07-17)

Problem Types: CWE-20 | CWE-287 | CWE-20 CWE-20: Improper Input Validation | CWE-287 CWE-287: Improper Authentication

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apolloconfig Apollo affected < 2.5.2 Not specified

References

ReferenceSourceLinkTags
github.com/apolloconfig/apollo/releases/tag/v2.5.2 [email protected] github.com
github.com/apolloconfig/apollo/commit/310809d557e01c6803051736cd525e333f... [email protected] github.com
github.com/apolloconfig/apollo/security/advisories/GHSA-h4pc-58cc-hc95 [email protected] github.com
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