# SixLabors ImageSharp has Excessive Memory Allocation in Gif Decoder Advisory record · `GHSA-qxrv-gp6x-rc23` - **Identifiers:** `GHSA-qxrv-gp6x-rc23` · `CVE-2024-41132` - **State:** Confirmed - **Severity:** CVSS 5.3 Medium - **Critical:** No - **Weakness (CWE):** [CWE-770](https://cwe.mitre.org/data/definitions/770.html) · [CWE-789](https://cwe.mitre.org/data/definitions/789.html) - **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md) - **Published:** 22 Jul 2024 - **Updated:** 10 Sept 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 22 Jul 2024, 17:42 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Affected packages - `SixLabors.ImageSharp` (NuGet): affected `<2.1.9 || >=3.0.0, <3.1.5`; fixed in `2.1.9`, `3.1.5` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > SixLabors.ImageSharp versions before 2.1.9 and from 3.0.0 before 3.1.5 are vulnerable. An attacker who can supply a specially crafted GIF file for ImageSharp to process can cause excessive memory usage in the GIF decoder. Upgrade to 2.1.9 or 3.1.5. As a workaround, call Image.Identify to check image dimensions before calling Image.Decode or Image.DecodeAsync, and enforce a limit on them. Written 9 Nov 2026. ## 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 CNA (GitHub_M) - **CISA KEV:** Not listed. - **EPSS:** 0.0077, the 56th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 22 Jul 2024, 10:20 UTC: [Published by the maintainers as a GitHub repository advisory](https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-qxrv-gp6x-rc23) - 31 Oct 2026, 15:21 UTC: First seen by agentprime - 31 Oct 2026, 15:21 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-qxrv-gp6x-rc23) ## Sources - [GitHub Advisory Database: GHSA-qxrv-gp6x-rc23](https://github.com/advisories/GHSA-qxrv-gp6x-rc23) - [OSV: GHSA-qxrv-gp6x-rc23](https://osv.dev/vulnerability/GHSA-qxrv-gp6x-rc23) - - - - - - - - - - - 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 (), 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: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .