CVE-2026-6387

Technical details for CVE-2026-6387 are not publicly available in the provided documents. Monitor Lenovo notices and NVD for updates on affected products, impacted components, root cause, and remediation.

io.netty/netty-handler-ssl-ocsp: Netty: Certificate revocation bypass via OCSP response replay attack

A flaw was found in Netty. The OcspClient component fails to validate that the Certificate ID in an Online Certificate Status Protocol OCSP response matches the requested Certificate ID. This vulnerability allows a remote attacker to bypass certificate revocation checks by presenting a legitimate...

io.netty/netty-codec-xml: Netty: Information disclosure via XML External Entity (XXE) vulnerability

A flaw was found in Netty, a network application framework. A remote attacker could exploit this vulnerability by sending specially crafted XML data containing a DOCTYPE declaration to a vulnerable XmlDecoder within the Netty channel pipeline. This can lead to an XML External Entity XXE...

io.netty/netty-codec-stomp: Netty: Denial of Service vulnerability in STOMP decoder

A flaw was found in Netty, a network application framework, specifically within the StompSubframeDecoder component. This vulnerability allows a remote attacker to cause a denial of service DoS by sending a large number of small headers. The decoder fails to properly limit the total number or...

CVE-2026-70452 rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure

rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by inducing DNS resolution failures during hostname-based access control evaluation. When a DNS lookup for a hostname-based deny rule fails, the daemon skips the ru...

CVE-2026-70452 rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure

rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by inducing DNS resolution failures during hostname-based access control evaluation. When a DNS lookup for a hostname-based deny rule fails, the daemon skips the ru...

CVE-2026-70452

rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability: DNS-resolution failures during hostname-based deny rule evaluation cause the daemon to skip the rule instead of denying, enabling unauthorized access to restricted module file trees by attackers who can trigger DNS failures...

CVE-2026-70453 rsync < 3.5.0 Algorithmic Complexity DoS via hash_search()

rsync before 3.5.0 contains an algorithmic complexity vulnerability in the hashsearch function that allows a remote attacker to cause a denial of service by delivering a carefully constructed file list. A sender can exploit the quadratic-time worst-case behavior in hash lookups to exhaust receive...

CVE-2026-70453 rsync < 3.5.0 Algorithmic Complexity DoS via hash_search()

rsync before 3.5.0 contains an algorithmic complexity vulnerability in the hashsearch function that allows a remote attacker to cause a denial of service by delivering a carefully constructed file list. A sender can exploit the quadratic-time worst-case behavior in hash lookups to exhaust receive...

EUVD-2026-58050

rsync 3.2.0 through 3.2.3 openssl mode and rsync-ssl through 3.4.4 stunnel mode contain a TLS certificate validation vulnerability that allows on-path attackers to intercept encrypted sessions by presenting self-signed or otherwise invalid certificates. Attackers can exploit the failure to valida...

CVE-2026-70455

rsync 3.4.2 before 3.5.0 contains a denial of service vulnerability that allows a remote sender to exhaust system resources by specifying the --zt short alias for --compress-threads, which bypasses the refuse options directive's string matching on long option names. Attackers can specify --zt=N...

CVE-2026-70455 rsync 3.4.2 < 3.5.0 DoS via --zt Zstandard Compression Thread Exhaustion

rsync 3.4.2 before 3.5.0 contains a denial of service vulnerability that allows a remote sender to exhaust system resources by specifying the --zt short alias for --compress-threads, which bypasses the refuse options directive's string matching on long option names. Attackers can specify --zt=N...

CVE-2026-70459 rsync 3.0.0 < 3.5.0 Daemon Crash via Malformed File List Entry

rsync 3.0.0 before 3.5.0 contains a null pointer dereference vulnerability in the daemon child process that allows remote attackers to crash the daemon by sending a file list whose first entry is a dot entry not typed as a directory. The daemon dereferences the first file list entry as a director...

CVE-2026-70459

rsync 3.0.0 before 3.5.0 is affected by a null pointer dereference in the daemon child process when processing a file list whose first entry is a dot entry not typed as a directory. The daemon dereferences the entry as a directory structure pointer without type verification, causing an invalid/un...

CVE-2026-70461

CVE-2026-70461 affects rsync 3.2.5 before 3.5.0. A heap out-of-bounds write is possible when processing a crafted files-from entry, allowing remote unauthenticated attackers to write one attacker-controlled byte past the end of a heap allocation. The issue is triggered when a files-from entry con...

EUVD-2026-58043

rsync 3.2.5 before 3.5.0 contains a heap out-of-bounds write vulnerability that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of a heap allocation by supplying a crafted files-from entry. Attackers can trigger the vulnerability against a read-only rsyn...

CVE-2026-70464 rsync 2.0.0 < 3.5.0 Connection Slot Exhaustion DoS via Handshake Stall

rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust daemon connection slots by stalling the handshake process before or after module selection without triggering the I/O timeout. Attackers can open many simultaneous...

CVE-2026-70464

CVE-2026-70464 affects rsync daemon 2.0.0 before 3.5.0. The issue is a denial-of-service vulnerability where unauthenticated remote attackers can exhaust daemon connection slots by stalling the handshake process before or after module selection, avoiding I/O timeouts and preventing legitimate cli...

EUVD-2026-58040

rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust daemon connection slots by stalling the handshake process before or after module selection without triggering the I/O timeout. Attackers can open many simultaneous...

CVE-2026-53799 rsync < 3.5.0 Symlink Race Condition via ACL/xattr Application

rsync before 3.5.0 contains a symlink race condition vulnerability that allows local attackers to cause rsync to apply arbitrary ACLs or extended attributes to unintended files by substituting a symlink at a predictable destination path between the file write and the subsequent aclsetfile or...