MEDIUM 6.7 NVD
CVE-2026-54697
ConnectBot SSH Client Library is written in Kotlin with Kaitai Struct and KStateMachine. Prior to 0.3.1, DerReader.readLength() accepts excessive long-form DER
ConnectBot SSH Client Library is written in Kotlin with Kaitai Struct and KStateMachine. Prior to 0.3.1, DerReader.readLength() accepts excessive long-form DER length octets, accumulates them into an Int, and primitive readers allocate arrays without checking the declared size against the remaining input. An application or user that loads an attacker-provided private-key file through SshClient.authenticatePublicKey(), SshKeys.decodePemPrivateKey(), SshSigning.sign(), or SshSigning.getPublicKey() can trigger integer wraparound, excessive allocation, or an uncaught OutOfMemoryError. SSH server host keys and agent-forwarding messages do not use this application-supplied private-key input path. No usable weakened key and no confidentiality or integrity impact have been demonstrated. This issue is fixed in version 0.3.1.
References
- https://github.com/connectbot/cbssh/commit/2bb917517bec0df229a02ca768d6eae84be72df0
- https://github.com/connectbot/cbssh/releases/tag/v0.3.1
- https://github.com/connectbot/cbssh/security/advisories/GHSA-vc8p-8pxg-rfwg
This medium severity vulnerability with a CVSS score of 6.7 was published on 2026-10-13 via NVD.
vulnfeed aggregates 13242 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.