OpenBSD

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Exploited and recent CVEs

• CVE-2026-123158 High 8.1 sshd in OpenSSH before 10.6p2 on Linux, when musl libc is used without PAM, lacks a workaround for a password authentication bypass (related to misinterpretation of whether a string is intended to be 1.0%
• CVE-2026-118374 Medium 5.9 LibreSSL ocspcheck through 4.4.0 Memory Exhaustion via Unbounded OCSP HTTP Response 0.2%
• CVE-2026-118373 Low 3.7 LibreSSL ocspcheck through 4.4.0 Cleartext Transmission of OCSP Requests via url2host() <0.1%
• CVE-2026-118372 Low 3.7 LibreSSL ocspcheck through 4.4.0 CRLF Injection via AIA OCSP URL Path 0.1%
• CVE-2026-118371 Low 3.7 LibreSSL through 4.4.0 CRLF Injection via OCSP_sendreq_new() Request Line 0.1%
• CVE-2026-106583 Low 2.5 In ssh in OpenSSH before 10.6, a $ or \ character can occur in a command-line username, leading to injection. 0.2%
• CVE-2026-106589 Low 2.9 In sshd in OpenSSH through 10.6, in certain environments such as QNX 6 and SCO OpenServer 5, sshd-session can unexpectedly have root privileges. This is related to the GatewayPorts and StreamLocalForw <0.1%
• CVE-2026-106588 Low 3.1 In sshd in OpenSSH through 10.6, use of the macOS 27 (or later) SDK has the side effect of loss of sandboxing, which is potentially unexpected. 0.1%
• CVE-2026-106587 Low 3.6 In sshd in OpenSSH before 10.6, the value "none" for a configuration option is sometimes interpreted as a filename but was intended to mean that a feature is disabled. <0.1%
• CVE-2026-106586 Low 2.5 In sshd in OpenSSH before 10.6, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not, a different vulnerability than CVE-2026-73283. 0.1%
• CVE-2026-106585 Medium 6.5 In sshd and ssh in OpenSSH before 10.6, there is no check for whether the maximum packet length is exceeded during decompression of highly compressed data. 0.2%
• CVE-2026-106584 Low 2.5 In ssh-keygen in OpenSSH before 10.6, certificates could have incorrect expiration times because of Daylight Saving mishandling. There can be a slightly more severe effect on users in certain Antarcti <0.1%
• CVE-2026-106582 Low 3.7 In sshd and ssh in OpenSSH before 10.6, an LZ77 dictionary coder can be used even though this is contraindicated by the arXiv 2609.07709 "Crossing the Streams" findings. 0.2%
• CVE-2026-106555 Low 2.2 In sshd in OpenSSH before 10.6, GSSAPIAuthentication authentication state can incorrectly be persisted across authentication attempts. 0.1%
• CVE-2026-106553 Low 2.2 In sshd in OpenSSH before 10.6, credentials can incorrectly persist after failure of a GSSAPIAuthentication authentication attempt. 0.1%
• CVE-2026-106552 Medium 4.2 In sftp in OpenSSH before 10.6, a server can trigger directory traversal (causing files to be written to unintended locations) during a recursive copy operation. 0.4%
• CVE-2026-103547 Critical 9.2 In ldapd in OpenBSD 7.8 before errata 057 and 7.9 before errata 021, delegated BSD authentication results are correlated only by the LDAP child process client file descriptor and LDAP message ID. Afte 0.4%
• CVE-2026-56101 Medium 5.3 OpenBSD ieee80211_crypto_tkip.c TKIP MIC Countermeasure Logic Inversion DoS 0.6%
• CVE-2026-73283 Low 2.5 In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not. 0.1%
• CVE-2026-73282 Medium 4.8 In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent. 0.2%
• CVE-2026-73281 Low 3.5 In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction betw 0.2%
• CVE-2026-60002 High 7.7 ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.) 0.3%
• CVE-2026-60001 Medium 6.5 sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay. 0.3%
• CVE-2026-60000 Low 3.7 sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive authentication attempts) because MaxAuthTries was mishandled for GSSAPIAuthenticat 0.6%
• CVE-2026-59999 Medium 5.9 In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not. 0.2%
• CVE-2026-59998 Medium 4.8 sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory. 0.2%
• CVE-2026-59997 Medium 4.2 internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended securi 0.2%
• CVE-2026-59996 Medium 4.2 scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occurs between two remote destinations. 0.2%
• CVE-2026-59995 Medium 4.2 sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server. 0.2%
• CVE-2026-57589 High 7.4 sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root. This is a context switch use-after-free after tsleep in sys_semget(). 0.2%