# Apache Thrift has a Memory Allocation with Excessive Size Value Vulnerability

Advisory record · `GHSA-2f9f-gq7v-9h6m`

- **Identifiers:** `GHSA-2f9f-gq7v-9h6m` · `BIT-thrift-2026-43868` · `CVE-2026-43868` · `RUSTSEC-2026-0435`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-789](https://cwe.mitre.org/data/definitions/789.html) · [CWE-1285](https://cwe.mitre.org/data/definitions/1285.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md) · [CWE-1285](https://agentprime.io/advisories/tag/cwe-1285.md)
- **Published:** 5 May 2026
- **Updated:** 2 Nov 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 5 May 2026, 09:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `thrift` (crates.io): affected `<0.23.0`; fixed in `0.23.0`

## 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

- 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.0071, the 53rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:17 UTC: First seen by agentprime
- 31 Oct 2026, 15:17 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-2f9f-gq7v-9h6m)

## Sources

- [GitHub Advisory Database: GHSA-2f9f-gq7v-9h6m](https://github.com/advisories/GHSA-2f9f-gq7v-9h6m)
- [OSV: GHSA-2f9f-gq7v-9h6m](https://osv.dev/vulnerability/GHSA-2f9f-gq7v-9h6m)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-43868>
- <https://github.com/apache/thrift/commit/d5152211af61f850ec393604316804096dd4632e>
- <https://access.redhat.com/errata/RHSA-2026:26586>
- <https://access.redhat.com/errata/RHSA-2026:42644>
- <https://access.redhat.com/security/cve/CVE-2026-43868>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2466670>
- <https://github.com/apache/thrift>
- <https://lists.apache.org/thread/zj76dtwnbbs1m7z3focf4wd51pqpsmn9>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43868.json>

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-2f9f-gq7v-9h6m>, 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-2f9f-gq7v-9h6m/>. Everything for agents: <https://agentprime.io/llms.txt>.