{"apiVersion":"1.0","identifier":"CVE-2026-81334","description":"darknet subscripts its layer array with an index taken from a configuration file without checking it against the array-s length. The array is allocated in src-lib/darknet_network.cpp as xcalloc(net.n, sizeof(Darknet::Layer)), sized to exactly the number of layer sections the file declares. The shortcut, scale_channels and sam sections supply that index through their from field and the route section through its layers field, and parse_shortcut_section in src-lib/darknet_cfg.cpp reads net.layers[index].outputs with no bounds check, which reads past the allocation. The dispatch loop in create_network then reuses the same index to assign net.layers[l.index].use_bin_output and net.layers[l.index].keep_delta_gpu, writing past the allocation at an offset the file controls, with a fixed one-byte value. Parsing a crafted configuration file is sufficient: the parse runs before any weights file is opened and needs no non-default option, so the result is a reliable crash and a write whose location, though not its value, is chosen by whoever supplied the file.","publishedAt":"2026-08-27T17:20:53","lastModifiedAt":"2026-08-27T20:18:50","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-81334","cvssScore":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","epssProbability":0.0013,"riskScore":0.62,"affectedProduct":"darknet","affectedVersions":"unknown","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-81334","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-81334","en":"https://www.redsauce.net/en/cves/CVE-2026-81334","fr":"https://www.redsauce.net/fr/cves/CVE-2026-81334","pt":"https://www.redsauce.net/pt/cves/CVE-2026-81334","de":"https://www.redsauce.net/de/cves/CVE-2026-81334","sk":"https://www.redsauce.net/sk/cves/CVE-2026-81334","el":"https://www.redsauce.net/el/cves/CVE-2026-81334"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-81334"}}