{"cve":"CVE-2022-46149","nvd":{"published":"2022-11-30T17:15:10.097","modified":"2026-06-17T05:11:18.400","status":"Modified","description":"Cap'n Proto is a data interchange format and remote procedure call (RPC) system. Cap'n Proro prior to versions 0.7.1, 0.8.1, 0.9.2, and 0.10.3, as well as versions of Cap'n Proto's Rust implementation prior to 0.13.7, 0.14.11, and 0.15.2 are vulnerable to out-of-bounds read due to logic error handling list-of-list. This issue may lead someone to remotely segfault a peer by sending it a malicious message, if the victim performs certain actions on a list-of-pointer type. Exfiltration of memory is possible if the victim performs additional certain actions on a list-of-pointer type. To be vulnerable, an application must perform a specific sequence of actions, described in the GitHub Security Advisory. The bug is present in inlined code, therefore the fix will require rebuilding dependent applications. Cap'n Proto has C++ fixes available in versions 0.7.1, 0.8.1, 0.9.2, and 0.10.3. The `capnp` Rust crate has fixes available in versions 0.13.7, 0.14.11, and 0.15.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","score":5.4},"cwes":["CWE-125"],"references":["https://github.com/capnproto/capnproto/commit/25d34c67863fd960af34fc4f82a7ca3362ee74b9","https://github.com/capnproto/capnproto/security/advisories/GHSA-qqff-4vw4-f6hx","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAHKLUMJAXJEV5BPBS5XXWBQ3ZTHGOLY/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTS6TWD6K2NKXLEEFBPROQXMOFUTEYWY/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WKXM4JAFXLTXU5IQB3OUBQVCIICZWGYX/"],"products":["capnproto:capnp","capnproto:capnproto","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T21:37:28.463369388+00:00"},"epss":{"cve":"CVE-2022-46149","score":0.00932,"percentile":0.60714,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-qqff-4vw4-f6hx","url":"https://osv.dev/vulnerability/GHSA-qqff-4vw4-f6hx","summary":"Cap'n Proto and its Rust implementation vulnerable to out-of-bounds read due to logic error handling list-of-list","modified":"2023-11-08T04:10:54.980908Z","packages":[{"ecosystem":"crates.io","name":"capnp","purl":"pkg:cargo/capnp","ranges":[">=0.15.0 <0.15.2"],"fixed":["0.15.2"]},{"ecosystem":"crates.io","name":"capnp","purl":"pkg:cargo/capnp","ranges":[">=0.14.0 <0.14.11"],"fixed":["0.14.11"]},{"ecosystem":"crates.io","name":"capnp","purl":"pkg:cargo/capnp","ranges":["<0.13.7"],"fixed":["0.13.7"]}]},{"id":"RUSTSEC-2022-0068","url":"https://osv.dev/vulnerability/RUSTSEC-2022-0068","summary":"out-of-bounds read possible when setting list-of-pointers","modified":"2023-11-08T04:10:54.980908Z","packages":[{"ecosystem":"crates.io","name":"capnp","purl":"pkg:cargo/capnp","ranges":[">=0.0.0-0 <0.13.7",">=0.14.0-0 <0.14.11",">=0.15.0-0 <0.15.2"],"fixed":["0.13.7","0.14.11","0.15.2"]}]}],"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."]}