{"answers":{"affected":"2 open source packages ship an affected version, including org.connectbot.sshlib:sshlib.","exploited":"There is no known exploitation of CVE-2026-54700 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-54700 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-54700 is a medium-severity denial of service vulnerability in connectbot cbssh, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-54700 and fix it if it is affected.\n\nWhat it is: CVE-2026-54700 is a medium-severity denial of service vulnerability in connectbot cbssh, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-54700 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.connectbot.sshlib:sshlib (Maven): affected all versions up to 0.3.0; no fix listed\n- org.connectbot.sshlib:sshlib (Maven): affected all versions up to 0.3.0; no fix listed\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-2026-54700/ (Markdown: https://insights.sbomify.com/CVE-2026-54700/index.md)","id":"CVE-2026-54700","markdown":"https://insights.sbomify.com/CVE-2026-54700/index.md","name":"CVE-2026-54700","record":{"aliases":["GHSA-ch3q-cw5r-f4hg"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"SSH client library","requires_auth":"none","summary":"A malicious SSH server can cause the ConnectBot SSH client library to crash via excessive memory allocation triggered by malformed packet fields.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-789","name":"Memory Allocation with Excessive Size Value"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"ConnectBot SSH Client Library is written in Kotlin with Kaitai Struct and KStateMachine. Prior to 0.3.1, the SSH protocol parser trusts attacker-controlled inner byte lengths and element counts without verifying that they fit in the containing packet. A malicious or compromised SSH server can return a small malformed packet whose oversized declarations cause the Kaitai Struct Java runtime to attempt excessive allocation or repeated parsing before detecting truncated input. The general transport path requires a client connection but no authentication or optional feature; malformed SSH-agent messages additionally require SSH agent forwarding. The issue can raise an uncaught OutOfMemoryError and terminate the application process, with no demonstrated confidentiality or integrity impact. This issue is fixed in version 0.3.1.","ecosystems":["Maven"],"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":"ConnectBot SSH: Unbounded SSH field lengths can cause excessive memory allocation","id":"CVE-2026-54700","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"Markdown Preview Enhanced: Stored XSS via Unsanitized `.crossnote/head.html` Injection in Webview","id":"CVE-2026-54701"},"packages":[{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["0.3.0"],"package":"org.connectbot.sshlib:sshlib","purl":null,"source":"GHSA-ch3q-cw5r-f4hg"},{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["0.3.0"],"package":"org.connectbot.sshlib:sshlib","purl":"pkg:maven/org.connectbot.sshlib/sshlib","source":"GHSA-ch3q-cw5r-f4hg"}],"prev":{"headline":"Warp: OS command injection when opening terminal links from WSL","id":"CVE-2026-54699"},"products":["cbssh"],"published":"2026-10-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["connectbot"]},"summary":"A malicious SSH server can cause the ConnectBot SSH client library to crash via excessive memory allocation triggered by malformed packet fields.","url":"https://insights.sbomify.com/CVE-2026-54700/"}