CVE catalog
CVE-2026-42496
Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory. _make_special_file() passes the tar header's linkname to symlink() witho
- Severity
- Critical · CVSS 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.43% · Oct 23, 2026
Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory. _make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target. A subsequent open through the extracted name reads or writes the attacker chosen path.
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 | perl | sid | 5.42.3-1 | fixed |
| Debian | perl | forky | 5.42.3-1 | fixed |
| Debian | perl | trixie | 5.40.1-6+deb13u1 | fixed |
| Debian | perl | bookworm | 5.36.0-7+deb12u3 | vulnerable |
| Debian | perl | bookworm-security | 5.36.0-7+deb12u4 | fixed |
| Cpe | perl | Not reported | Not reported | vulnerable |
| Cpe | \ | Not reported | 3.08 | fixed |
| Ubuntu | perl | pro | 5.28.1-6build1 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-7 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9build1 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.2 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.3 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.4 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.5 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.5+esm2 | fixed |
| Ubuntu | perl | 25.10 | 5.40.1-2 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-3 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-5 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-6 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-6build1 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-6ubuntu0.1 | fixed |
| Ubuntu | perl | pro | 5.28.1-6build1 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-7 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9build1 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.2 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.3 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.4 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.5 | vulnerable |
| Ubuntu | perl | pro | 5.30.0-9ubuntu0.5+esm2 | fixed |
| Ubuntu | perl | 22.04 | 5.32.1-3ubuntu3 | vulnerable |
| Ubuntu | perl | 22.04 | 5.34.0-3ubuntu1 | vulnerable |
| Ubuntu | perl | 22.04 | 5.34.0-3ubuntu1.1 | vulnerable |
| Ubuntu | perl | 22.04 | 5.34.0-3ubuntu1.2 | vulnerable |
| Ubuntu | perl | 22.04 | 5.34.0-3ubuntu1.3 | vulnerable |
| Ubuntu | perl | 22.04 | 5.34.0-3ubuntu1.4 | vulnerable |
| Ubuntu | perl | 22.04 | 5.34.0-3ubuntu1.5 | vulnerable |
| Ubuntu | perl | 22.04 | 5.34.0-3ubuntu1.7 | fixed |
| Ubuntu | perl | 24.04 | 5.36.0-9ubuntu1 | vulnerable |
| Ubuntu | perl | 24.04 | 5.36.0-10ubuntu1 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3.2 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3.2build1 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3.2build2 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3.2build2.1 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3.2ubuntu0.1 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3.2ubuntu0.2 | vulnerable |
| Ubuntu | perl | 24.04 | 5.38.2-3.2ubuntu0.3 | fixed |
| Ubuntu | perl | 25.10 | 5.40.1-2 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-3 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-5 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-6 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-6build1 | vulnerable |
| Ubuntu | perl | 25.10 | 5.40.1-6ubuntu0.1 | fixed |
| Ubuntu | perl | 26.04 | 5.40.1-6build1 | vulnerable |
| Ubuntu | perl | 26.04 | 5.40.1-7build1 | vulnerable |
| Ubuntu | perl | 26.04 | 5.40.1-7ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | perl | source | sid | 5.42.3-1 | not yet assigned | Not reported | [1138860] |
| Debian | perl | source | forky | 5.42.3-1 | not yet assigned | Not reported | [1138860] |
| Debian | perl | source | trixie | 5.40.1-6+deb13u1 | not yet assigned | Not reported | [1138860] |
| Debian | perl | source | bookworm | 5.36.0-7+deb12u4 | not yet assigned | Not reported | [1138860] |
| Cpe | \ | cpe | Not reported | 3.08 | Not reported | Not reported | Not reported |
| Ubuntu | perl | deb | pro | 5.30.0-9ubuntu0.5+esm2 | Not reported | USN-8467-1 | Not reported |
| Ubuntu | perl | deb | 25.10 | 5.40.1-6ubuntu0.1 | Not reported | USN-8467-2 | Not reported |
| Ubuntu | perl | deb | pro | 5.30.0-9ubuntu0.5+esm2 | Not reported | UBUNTU-CVE-2026-42496 | Not reported |
| Ubuntu | perl | deb | 22.04 | 5.34.0-3ubuntu1.7 | Not reported | UBUNTU-CVE-2026-42496 | Not reported |
| Ubuntu | perl | deb | 24.04 | 5.38.2-3.2ubuntu0.3 | Not reported | UBUNTU-CVE-2026-42496 | Not reported |
| Ubuntu | perl | deb | 25.10 | 5.40.1-6ubuntu0.1 | Not reported | UBUNTU-CVE-2026-42496 | Not reported |
| Ubuntu | perl | deb | 26.04 | 5.40.1-7ubuntu0.1 | Not reported | UBUNTU-CVE-2026-42496 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libperl5.36]Affected
Source package: [perl]
Details (4)
5.36.0-7+deb12u3· amd64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u3· arm64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· amd64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· arm64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
- [libperl-dev]Affected
Source package: [perl]
Details (4)
5.36.0-7+deb12u3· amd64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u3· arm64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· amd64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· arm64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
- [perl]Affected
Details (4)
5.36.0-7+deb12u3· amd64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u3· arm64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· amd64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· arm64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
- [perl-base]Affected
Source package: [perl]
Details (4)
5.36.0-7+deb12u3· amd64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u3· arm64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· amd64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· arm64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
- [perl-debug]Affected
Source package: [perl]
Details (4)
5.36.0-7+deb12u3· amd64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u3· arm64 · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· amd64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· arm64 · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
- [perl-doc]Affected
Source package: [perl]
Details (4)
5.36.0-7+deb12u3· all · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u3· all · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· all · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· all · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
- [perl-modules-5.36]Affected
Source package: [perl]
Details (4)
5.36.0-7+deb12u3· all · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u3· all · bookwormAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· all · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
5.36.0-7+deb12u2· all · bookworm-securityAffected · Fixed:
5.36.0-7+deb12u4nvd · perl · debian · bookworm; nvd · perl · debian · 12
[Debian 13 (Trixie)]
- [libperl5.40]Affected
Source package: [perl]
Details (2)
5.40.1-6· amd64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
5.40.1-6· arm64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
- [libperl-dev]Affected
Source package: [perl]
Details (2)
5.40.1-6· amd64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
5.40.1-6· arm64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
- [perl]Affected
Details (2)
5.40.1-6· amd64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
5.40.1-6· arm64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
- [perl-base]Affected
Source package: [perl]
Details (2)
5.40.1-6· amd64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
5.40.1-6· arm64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
- [perl-debug]Affected
Source package: [perl]
Details (2)
5.40.1-6· amd64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
5.40.1-6· arm64 · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
- [perl-doc]Affected
Source package: [perl]
Details (2)
5.40.1-6· all · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
5.40.1-6· all · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
- [perl-modules-5.40]Affected
Source package: [perl]
Details (2)
5.40.1-6· all · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
5.40.1-6· all · trixieAffected · Fixed:
5.40.1-6+deb13u1nvd · perl · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2026:30852]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_30851.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-42496]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-42496]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-42496]
- [https://osv.dev/vulnerability/USN-8467-1]
- [https://osv.dev/vulnerability/USN-8467-2]
- [https://security-tracker.debian.org/tracker/CVE-2026-42496]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2666.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]