https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 08 Oct 2026 17:36:05 +0000 https://cve.radiocsirt.org/vuln/cve-2026-56755 <p><strong>Affected:</strong> Gitea Open Source Git Server</p> <p>Denial of Service (CPU &amp; Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload</p> <p><strong>Affected:</strong> Gitea Open Source Git Server</p> <p>Denial of Service (CPU &amp; Memory Exhaustion) via O(N^2) String Concatenation in Debian Package Upload</p> https://cve.radiocsirt.org/vuln/cve-2026-56755 https://cve.radiocsirt.org/vuln/ghsa-6hm7-3pwj-22rm <p><strong>Affected:</strong> Go: code.gitea.io/gitea</p> <p>Gitea&#39;s Debian package registry parser contains an unbounded decompression vulnerability in [ParseControlFile](https://github.com/go-gitea/gitea/blob/689ace1ce28fd74244b8aa335d9928cdbf6b22f9/modules/packages/debian/metadata.go#L140). When processing an uploaded `.deb` file, the parser decompresses `control.tar.gz` and copies the entire uncompressed stream into a `strings.Builder` via a `TeeReader`, with no limit on how much data is read. Because `DEFLATE` compression can achieve ratios exceeding 100:1 on repetitive input, an attacker can craft an 83 MB `.deb` payload that expands to over 16 GB during parsing, exhausting server memory before any content validation runs. A second issue compounds this: continuation lines in the Description field are concatenated with `+=` at [modules/packages/debian/metadata.go:161](https://github.com/go-gitea/gitea/blob/689ace1ce28fd74244b8aa335d9928cdbf6b22f9/modules/packages/debian/metadata.go#L161) inside a loop, producing `O(N²)` allocation and copy work that stalls the CPU even at moderate line counts. Any authenticated user with write access to the package registry can trigger a complete denial of service with a single upload request to the handler at [routers/api/packages/debian/debian.go:146](https://github.com/go-gitea/gitea/blob/689ace1ce28fd74244b8aa335d9928cdbf6b22f9/routers/api/packages/debian/debian.go#L146).</p> <p>### Root Cause</p> <p>There are two distinct root causes that can be exploited independently or together.</p> <p>**1. Unbounded decom…</p> <p><strong>Affected:</strong> Go: code.gitea.io/gitea</p> <p>Gitea&#39;s Debian package registry parser contains an unbounded decompression vulnerability in [ParseControlFile](https://github.com/go-gitea/gitea/blob/689ace1ce28fd74244b8aa335d9928cdbf6b22f9/modules/packages/debian/metadata.go#L140). When processing an uploaded `.deb` file, the parser decompresses `control.tar.gz` and copies the entire uncompressed stream into a `strings.Builder` via a `TeeReader`, with no limit on how much data is read. Because `DEFLATE` compression can achieve ratios exceeding 100:1 on repetitive input, an attacker can craft an 83 MB `.deb` payload that expands to over 16 GB during parsing, exhausting server memory before any content validation runs. A second issue compounds this: continuation lines in the Description field are concatenated with `+=` at [modules/packages/debian/metadata.go:161](https://github.com/go-gitea/gitea/blob/689ace1ce28fd74244b8aa335d9928cdbf6b22f9/modules/packages/debian/metadata.go#L161) inside a loop, producing `O(N²)` allocation and copy work that stalls the CPU even at moderate line counts. Any authenticated user with write access to the package registry can trigger a complete denial of service with a single upload request to the handler at [routers/api/packages/debian/debian.go:146](https://github.com/go-gitea/gitea/blob/689ace1ce28fd74244b8aa335d9928cdbf6b22f9/routers/api/packages/debian/debian.go#L146).</p> <p>### Root Cause</p> <p>There are two distinct root causes that can be exploited independently or together.</p> <p>**1. Unbounded decom…</p> https://cve.radiocsirt.org/vuln/ghsa-6hm7-3pwj-22rm