{"cve":"CVE-2026-45047","nvd":{"published":"2026-05-27T18:16:24.150","modified":"2026-10-26T11:10:00.157","status":"Deferred","description":"bird-lg-go is a BIRD looking glass in Go. Prior to 1.4.5, the apiHandler (and similarly webHandlerTelegramBot) processes user-provided JSON payloads by directly using json.NewDecoder(r.Body).Decode(&request) without restricting the maximum read size. An unauthenticated remote attacker can stream an extremely large, endless JSON payload (e.g., several Gigabytes of padding) over a single TCP connection. Because Go's JSON decoder attempts to allocate memory for the entire parsed structure, this rapidly exhausts the host's physical RAM or container limits, leading to an unrecoverable fatal error: runtime: out of memory. This vulnerability is fixed in 1.4.5.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://github.com/xddxdd/bird-lg-go/security/advisories/GHSA-39qr-rc93-vhqm"],"products":[],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-45047","score":0.00441,"percentile":0.38096,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-39qr-rc93-vhqm","url":"https://osv.dev/vulnerability/GHSA-39qr-rc93-vhqm","summary":"Bird-lg-go has a Fatal Out-of-Memory (OOM) Denial of Service via Unbounded JSON Decoding","modified":"2026-06-25T18:56:27.876788316Z","packages":[{"ecosystem":"Go","name":"github.com/xddxdd/bird-lg-go","purl":"pkg:golang/github.com/xddxdd/bird-lg-go","ranges":["<0.0.0-20260507060110-0ff87024cb9e"],"fixed":["0.0.0-20260507060110-0ff87024cb9e"]}]},{"id":"GO-2026-5077","url":"https://osv.dev/vulnerability/GO-2026-5077","summary":"Bird-lg-go has a Fatal Out-of-Memory (OOM) Denial of Service via Unbounded JSON Decoding in github.com/xddxdd/bird-lg-go","modified":"2026-06-25T18:45:16.454757169Z","packages":[{"ecosystem":"Go","name":"github.com/xddxdd/bird-lg-go","purl":"pkg:golang/github.com/xddxdd/bird-lg-go","ranges":["<0.0.0-20260507060110-0ff87024cb9e"],"fixed":["0.0.0-20260507060110-0ff87024cb9e"]}]}],"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."]}