# AWS SDK for Ruby's S3 Encryption Client has a Key Commitment Issue

Advisory record · `GHSA-2xgq-q749-89fq`

- **Identifiers:** `GHSA-2xgq-q749-89fq` · `CVE-2025-14762`
- **State:** Confirmed
- **Severity:** CVSS 6.0 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-327](https://cwe.mitre.org/data/definitions/327.html)
- **Tags:** [Weak cryptography or TLS](https://agentprime.io/advisories/tag/weak-crypto.md)
- **Published:** 18 Dec 2025
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 18 Dec 2025, 18:51 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `aws-sdk-s3` (RubyGems): affected `<1.208.0`; fixed in `1.208.0`

## 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

- 6.0 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`, from CNA (AMZN)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 10th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:16 UTC: First seen by agentprime
- 31 Oct 2026, 15:16 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-2xgq-q749-89fq)

## Sources

- [GitHub Advisory Database: GHSA-2xgq-q749-89fq](https://github.com/advisories/GHSA-2xgq-q749-89fq)
- [OSV: GHSA-2xgq-q749-89fq](https://osv.dev/vulnerability/GHSA-2xgq-q749-89fq)
- <https://github.com/aws/aws-sdk-ruby/security/advisories/GHSA-2xgq-q749-89fq>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-14762>
- <https://github.com/aws/aws-sdk-ruby/commit/b633ba10cd2fbc4cc770b76ab531ed9647654044>
- <https://aws.amazon.com/security/security-bulletins/AWS-2025-032>
- <https://github.com/aws/aws-sdk-ruby>
- <https://github.com/rubysec/ruby-advisory-db/blob/master/gems/aws-sdk-s3/CVE-2025-14762.yml>
- <https://rubygems.org/gems/aws-sdk-s3/versions/1.208.0>

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-2xgq-q749-89fq>, 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-2xgq-q749-89fq/>. Everything for agents: <https://agentprime.io/llms.txt>.