{"cve":"CVE-2026-117677","nvd":{"published":"2026-11-01T10:18:35.780","modified":"2026-11-01T10:18:35.893","status":"Deferred","description":"When parsing an uploaded Helm chart, Gitea decompressed the archive and read every tar entry while looking for `Chart.yaml` without limiting the decompressed size, and did so before the package size quota was checked; the quota only considers the compressed upload size. A user with package write access to an owner, for example their own account on an instance with open registration, could repeatedly upload small, highly compressed archives that make the server spend CPU time proportional to the decompressed size, degrading the availability of the Gitea instance. The issue does not allow code execution or data access.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-400","CWE-409"],"references":["https://blog.gitea.com/release-of-28.3.0/","https://github.com/go-gitea/gitea/pull/39942","https://github.com/go-gitea/gitea/pull/40085","https://github.com/go-gitea/gitea/releases/tag/v28.3.0","https://github.com/go-gitea/gitea/security/advisories/GHSA-r6mh-qg79-rqj2"],"reference_tags":[{"url":"https://blog.gitea.com/release-of-28.3.0/","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/39942","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/40085","tags":[]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v28.3.0","tags":[]},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-r6mh-qg79-rqj2","tags":[]}],"products":[],"affected":[],"source":"nvd","synced_at":"2026-11-01T10:34:16.358491727+00:00"},"epss":{"cve":"CVE-2026-117677","score":0.0021,"percentile":0.11229,"date":"2026-11-01"},"kev":null,"exploits":[],"weaknesses":[{"name":"Uncontrolled Resource Consumption","common_name":null,"deprecated":false,"replaced_by":[],"id":"CWE-400"},{"name":"Improper Handling of Highly Compressed Data (Data Amplification)","common_name":null,"deprecated":false,"replaced_by":[],"id":"CWE-409"}],"osv":[],"fixed":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program.","Public exploits: links to the Exploit Database (https://www.exploit-db.com, by OffSec; index under GPL-2.0), Rapid7's Metasploit Framework modules (https://github.com/rapid7/metasploit-framework, BSD-3-Clause) and ProjectDiscovery's nuclei templates (https://github.com/projectdiscovery/nuclei-templates, MIT). Only the links, titles and dates are stored; no exploit code is fetched or served.","CWE names and descriptions: MITRE's Common Weakness Enumeration (https://cwe.mitre.org), Copyright © 2006–2026, The MITRE Corporation, under the CWE terms of use (https://cwe.mitre.org/about/termsofuse.html). CWE is a trademark of The MITRE Corporation."]}