DEBIAN-CVE-2026-70622

Source
https://security-tracker.debian.org/tracker/CVE-2026-70622
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70622.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-70622
Upstream
Published
2026-08-10T18:18:50Z
Modified
2026-09-14T17:03:29Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

tar-rs versions 0.4.11 through 0.4.46 contain a symlink escape vulnerability in the Builder::append_dir_all() function that allows attackers to read files outside the intended source root directory by planting symlinks in an attacker-controlled directory. When a privileged process archives an untrusted directory, the function follows symlinks without verifying that resolved targets remain within the source root, causing out-of-bounds files to be included in the archive as regular files and disclosed to the attacker.

References

Affected packages

Debian:12 / rust-tar

Package

Name
rust-tar
Purl
pkg:deb/debian/rust-tar?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.4.38-1
0.4.38-2
0.4.40-1
0.4.43-1
0.4.43-2
0.4.43-3
0.4.43-4
0.4.44-1
0.4.45-1
0.4.45-2

Ecosystem specific

{
    "urgency":  "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70622.json"

Debian:13 / rust-tar

Package

Name
rust-tar
Purl
pkg:deb/debian/rust-tar?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.4.43-4
0.4.44-1
0.4.45-1
0.4.45-2

Ecosystem specific

{
    "urgency":  "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70622.json"

Debian:14 / rust-tar

Package

Name
rust-tar
Purl
pkg:deb/debian/rust-tar?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.4.43-4
0.4.44-1
0.4.45-1
0.4.45-2

Ecosystem specific

{
    "urgency":  "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70622.json"