🛡️ CVE-2026-59954 — apollo

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-20 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

Summary

Apollo ConfigService may allow unauthorized access to configuration data when AccessKey / management key authentication is enabled and ConfigService accepts a non-canonical appId variant during authentication while downstream request handling resolves it to the protected app.

Details

ConfigService extracts appId from configuration and notification requests and uses the extracted value to look up available AccessKey secrets. If the extracted appId is a non-canonical variant that does not exactly match the AccessKey cache key, ConfigService may treat the request as having no available secrets and allow it to continue without signature verification.

This can happen when downstream release lookup still matches the real appId under database collations that treat the values as equivalent. Examples include accent variants under accent-insensitive collations, or trailing-space variants under PAD SPACE collations.

Impact

An unauthenticated remote attacker may read configuration data from affected ConfigService endpoints when AccessKey / management key authentication is enabled for the target app and the deployment database collation treats a non-canonical appId variant as equivalent to the real appId.

Affected endpoints

The primary impact is on ConfigService configuration read endpoints under /configs and /configfiles. Notification endpoints using appId parameters are also hardened as defense-in-depth.

Status

Fixed in Apollo 2.5.2. Users should upgrade to Apollo 2.5.2 or later.

Related advisory

The raw config file endpoint parsing issue originally described in this advisory has been split into GHSA-h4pc-58cc-hc95 so each independently fixable vulnerability can receive its own CVE.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-59954 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2026-59954 is recorded against 2 packages.

  • com.ctrip.framework.apollo:apollo
  • unknown

Timeline and source

Published on 13 July 2026 and last revised on 20 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2026-07-13
Updated 2026-08-12
Modified 2026-07-20
Fix URL N/A

Affected Packages

Software From version Fixed in
com.ctrip.framework.apollo:apollo — —
unknown — —

Similar Threats

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