CVE catalog

CVE-2026-70622

Severity: High · CVSS 7.1CVSS: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
Published: Aug 10, 2026, 5:35:23 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.46% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	rust-tar	sid	`0.4.46-1`	vulnerable
Debian	rust-tar	forky	`0.4.46-1`	vulnerable
Debian	rust-tar	trixie	`0.4.43-4`	vulnerable
Debian	rust-tar	bookworm	`0.4.38-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	rust-tar	source	sid	`(unfixed)`	unimportant	Not reported	[1144402]
Debian	rust-tar	source	forky	`(unfixed)`	unimportant	Not reported	[1144402]
Debian	rust-tar	source	trixie	`(unfixed)`	unimportant	Not reported	[1144402]
Debian	rust-tar	source	bookworm	`(unfixed)`	unimportant	Not reported	[1144402]

[Debian bug #1144402]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[librust-tar-dev]Affected
Source package: [rust-tar]
Details (2)
- 0.4.38-1 · amd64 · bookworm
  Affected
  nvd · rust-tar · debian · bookworm; nvd · rust-tar · debian · 12
- 0.4.38-1 · arm64 · bookworm
  Affected
  nvd · rust-tar · debian · bookworm; nvd · rust-tar · debian · 12
[libstd-rust-1.63]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · amd64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · arm64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
[libstd-rust-dev]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · amd64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · arm64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
[libstd-rust-dev-wasm32]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
[libstd-rust-dev-windows]Affected
Source package: [rustc]
Details (1)
- 1.63.0+dfsg1-2 · amd64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rust-all]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rustc]Affected
Details (2)
- 1.63.0+dfsg1-2 · amd64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · arm64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rust-clippy]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · amd64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · arm64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rust-doc]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rustfmt]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · amd64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · arm64 · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rust-gdb]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rust-lldb]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
[rust-src]Affected
Source package: [rustc]
Details (2)
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm
- 1.63.0+dfsg1-2 · all · bookworm
  Affected
  nvd · rustc · debian · bookworm

[Debian 13 (Trixie)]

[librust-tar-dev]Affected
Source package: [rust-tar]
Details (2)
- 0.4.43-4 · amd64 · trixie
  Affected
  nvd · rust-tar · debian · 13
- 0.4.43-4 · arm64 · trixie
  Affected
  nvd · rust-tar · debian · 13

Observed: Oct 23, 2026, 9:42:17 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]