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

Advisory record · `GHSA-h4pc-58cc-hc95`

- **Identifiers:** `GHSA-h4pc-58cc-hc95` · `CVE-2026-59955`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **Weakness (CWE):** [CWE-20](https://cwe.mitre.org/data/definitions/20.html) · [CWE-287](https://cwe.mitre.org/data/definitions/287.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md) · [CWE-20](https://agentprime.io/advisories/tag/cwe-20.md)
- **Published:** 13 Jul 2026
- **Updated:** 20 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 13 Jul 2026, 18:37 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `com.ctrip.framework.apollo:apollo` (Maven): affected `all versions`; no fixed version yet

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0057, the 47th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:19 UTC: First seen by agentprime
- 31 Oct 2026, 14:19 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-h4pc-58cc-hc95)

## Sources

- [GitHub Advisory Database: GHSA-h4pc-58cc-hc95](https://github.com/advisories/GHSA-h4pc-58cc-hc95)
- [OSV: GHSA-h4pc-58cc-hc95](https://osv.dev/vulnerability/GHSA-h4pc-58cc-hc95)
- <https://github.com/apolloconfig/apollo/security/advisories/GHSA-h4pc-58cc-hc95>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-59955>
- <https://github.com/apolloconfig/apollo/commit/310809d557e01c6803051736cd525e333ffe00ec>
- <https://github.com/apolloconfig/apollo>
- <https://github.com/apolloconfig/apollo/releases/tag/v2.5.2>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-h4pc-58cc-hc95>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-h4pc-58cc-hc95/>. Everything for agents: <https://agentprime.io/llms.txt>.