ALPINE-CVE-2026-45232

Source
https://security.alpinelinux.org/vuln/CVE-2026-45232
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-45232.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-45232
Upstream
  • CVE-2026-45232
Published
2026-05-20T02:16:36.887Z
Modified
2026-05-22T16:30:25.320162236Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

Rsync versions before 3.4.3 contain an off-by-one out-of-bounds stack write vulnerability in the establishproxyconnection() 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.

References

Affected packages

Alpine:v3.20 / rsync

Package

Name
rsync
Purl
pkg:apk/alpine/rsync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.3-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-45232.json"

Alpine:v3.21 / rsync

Package

Name
rsync
Purl
pkg:apk/alpine/rsync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.3-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-45232.json"

Alpine:v3.22 / rsync

Package

Name
rsync
Purl
pkg:apk/alpine/rsync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.3-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-45232.json"

Alpine:v3.23 / rsync

Package

Name
rsync
Purl
pkg:apk/alpine/rsync?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.3-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-45232.json"