{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-116773 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-116773 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-116773 is a medium-severity vulnerability in Eugeny russh, published on 27 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-116773 and fix it if it is affected.\n\nWhat it is: CVE-2026-116773 is a medium-severity vulnerability in Eugeny russh, published on 27 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-116773 in the wild and no public exploit code.\n\nAffected product: Eugeny russh. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-116773/ (Markdown: https://insights.sbomify.com/CVE-2026-116773/index.md)","id":"CVE-2026-116773","markdown":"https://insights.sbomify.com/CVE-2026-116773/index.md","name":"CVE-2026-116773","record":{"aliases":["DEBIAN-CVE-2026-116773","GHSA-4p9f-7p9m-5vfg","UBUNTU-CVE-2026-116773"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to 0.65.0, the client Session::process_packet path in russh/src/client/encrypted.rs accepts repeated packets encoded with russh's private msg::EXT_INFO = 7 before authentication, while the standards-compliant EXT_INFO message number 82 does not reach the affected handler. The handle_ext_info function appends every parsed extension name to received_extensions without clearing, deduplicating, or bounding the vector. A malicious SSH server that deliberately sends private message number 7 can therefore retain an unbounded number of attacker-controlled extension names for the session lifetime, causing progressive client memory exhaustion. This issue is fixed in version 0.65.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"russh's SSH client is susceptible to unbounded allocations via EXT_INFO packets","id":"CVE-2026-116773","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"russh: peer-declared zero maximum packet size permanently stalls channel writes (silent AsyncWrite hang)","id":"CVE-2026-116774"},"packages":[],"prev":{"headline":"The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and","id":"CVE-2026-116763"},"products":["russh"],"published":"2026-10-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-27","vendors":["Eugeny"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-116773/"}