CVE-2026-45232
lowpriority · track · 15EPSS 0.003 · 27 %ileDEEUUSEPSS · scored 2026-10-27
Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the establish_proxy_connection() function in socket.c that allows network attackers to corrupt stack memory by sending a malformed HTTP proxy response. Attackers can exploit this by positioning themselves between the client and proxy or controlling the proxy server to send a response line of 1023 or more bytes without a newline terminator, causing a null byte to be written to an out-of-bounds stack address when the RSYNC_PROXY environment variable is set.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (20)
Products and version ranges known to be affected.
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1611Rsync: Mehrere SchwachstellenDeutsch2026-05-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Rsync ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, um Sicherheitsvorkehrungen zu umgehen, und um einen Denial of Service Angriff durchzuführen.
- WID-SEC-W-2026-2455Oracle Solaris Drittanbieterkomponenten: Mehrere SchwachstellenDeutsch2026-07-21csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Drittanbietern in Oracle Solaris ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://github.com/RsyncProject/rsync/releases/Patchcnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45232cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-45232cnnvd
- https://github.com/RsyncProject/rsync/releases/tag/v3.4.3enisa_euvd
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-8f85-j2cv-59m8enisa_euvd
- https://www.vulncheck.com/advisories/rsync-off-by-one-stack-write-via-http-proxyenisa_euvd
- https://github.com/RsyncProject/rsync/releases/tag/v3.4.3Release Notesnvd
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-8f85-j2cv-59m8Vendor Advisorynvd
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