CVE-2026-9538
Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header
02 Description
Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.51% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 43.7% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-07-23.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-05-26 00:18Z5 MO AGO
- Last updated
- 2026-05-28 13:16Z5 MO AGO
- Reserved
- 2026-05-25
- Assigning CNA
- CPANSec
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- Data version
- 5.2
- Document digest
- db79967e7eb5596eac6824d4c77c739f49413f1147571ea38ac9dceca458a654
05 Affected products
06 References
07 Remediation
Upgrade to Archive::Tar 3.10 or later.
08 Fixed in
AlmaLinux 8
- perl Fixed
A version is affected if any line below covers it.
- Affected before 4:5.32.1-474.module_el8.10.0+4162+0aac7c4c
- Affected before 4:5.32.1-474.module_el8.10.0+4240+a58b978c
- perl-Algorithm-Diff Fixed in 1.1903-10.module_el8.6.0+2766+8bf0b7ce
- perl-Archive-Tar Fixed
A version is affected if any line below covers it.
- Affected before 2.30-3.el8_10
- Affected before 2.38-5.module_el8.10.0+4240+a58b978c
- perl-Archive-Zip Fixed in 1.68-3.module_el8.6.0+2766+8bf0b7ce
- perl-Attribute-Handlers Fixed in 1.01-474.module_el8.10.0+4162+0aac7c4c
- perl-AutoLoader Fixed in 5.74-474.module_el8.10.0+4162+0aac7c4c
- perl-AutoSplit Fixed in 5.74-474.module_el8.10.0+4240+a58b978c
- perl-B Fixed
A version is affected if any line below covers it.
- Affected before 1.80-474.module_el8.10.0+4162+0aac7c4c
- Affected before 1.80-474.module_el8.10.0+4240+a58b978c
- perl-Benchmark Fixed in 1.23-474.module_el8.10.0+4162+0aac7c4c
- perl-CPAN Fixed in 2.28-5.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-DistnameInfo Fixed in 0.12-13.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-Meta Fixed in 2.150010-397.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-Meta-Requirements Fixed in 2.140-397.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-Meta-YAML Fixed in 0.018-1001.module_el8.6.0+2766+8bf0b7ce
- perl-Carp Fixed in 1.50-439.module_el8.6.0+2766+8bf0b7ce
- perl-Class-Struct Fixed in 0.66-474.module_el8.10.0+4162+0aac7c4c
- perl-Compress-Bzip2 Fixed
A version is affected if any line below covers it.
- Affected before 2.28-2.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.28-2.module_el8.6.0+3181+91434291
- perl-Compress-Raw-Bzip2 Fixed
A version is affected if any line below covers it.
- Affected before 2.096-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.096-1.module_el8.6.0+3181+91434291
- perl-Compress-Raw-Lzma Fixed
A version is affected if any line below covers it.
- Affected before 2.096-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.096-1.module_el8.6.0+3181+91434291
- perl-Compress-Raw-Zlib Fixed in 2.096-2.module_el8.10.0+3779+d5938d28
- perl-Config-Extensions Fixed in 0.03-474.module_el8.10.0+4240+a58b978c
- perl-Config-Perl-V Fixed in 0.32-441.module_el8.6.0+2766+8bf0b7ce
- perl-DBM_Filter Fixed in 0.06-474.module_el8.10.0+4162+0aac7c4c
- perl-DB_File Fixed
A version is affected if any line below covers it.
- Affected before 1.855-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 1.855-1.module_el8.6.0+3181+91434291
- perl-Data-Dumper Fixed
A version is affected if any line below covers it.
- Affected before 2.174-440.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.174-440.module_el8.6.0+3181+91434291
- perl-Data-OptList Fixed in 0.110-7.module_el8.6.0+2766+8bf0b7ce
- perl-Data-Section Fixed in 0.200007-8.module_el8.6.0+2766+8bf0b7ce
- perl-Devel-PPPort Fixed
A version is affected if any line below covers it.
- Affected before 3.62-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 3.62-1.module_el8.6.0+3181+91434291
- perl-Devel-Peek Fixed
A version is affected if any line below covers it.
- Affected before 1.28-474.module_el8.10.0+4162+0aac7c4c
- Affected before 1.28-474.module_el8.10.0+4240+a58b978c
- perl-Devel-SelfStubber Fixed in 1.06-474.module_el8.10.0+4240+a58b978c
- perl-Devel-Size Fixed
A version is affected if any line below covers it.
- Affected before 0.83-3.module_el8.6.0+2766+8bf0b7ce
- Affected before 0.83-3.module_el8.6.0+3181+91434291
- perl-Digest Fixed in 1.20-1.module_el8.6.0+2766+8bf0b7ce
- perl-Digest-MD5 Fixed
A version is affected if any line below covers it.
- Affected before 2.58-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.58-1.module_el8.6.0+3181+91434291
- perl-Digest-SHA Fixed
A version is affected if any line below covers it.
- Affected before 1:6.02-2.module_el8.6.0+2766+8bf0b7ce
- Affected before 1:6.02-2.module_el8.6.0+3181+91434291
- perl-DirHandle Fixed in 1.05-474.module_el8.10.0+4162+0aac7c4c
- perl-Dumpvalue Fixed in 2.27-474.module_el8.10.0+4162+0aac7c4c
- perl-DynaLoader Fixed
A version is affected if any line below covers it.
- Affected before 1.47-474.module_el8.10.0+4162+0aac7c4c
- Affected before 1.47-474.module_el8.10.0+4240+a58b978c
- perl-Encode Fixed
A version is affected if any line below covers it.
- Affected before 4:3.08-461.module_el8.6.0+2766+8bf0b7ce
- Affected before 4:3.08-461.module_el8.6.0+3181+91434291
- perl-Encode-Locale Fixed in 1.05-10.module_el8.6.0+2766+8bf0b7ce
- perl-Encode-devel Fixed
A version is affected if any line below covers it.
- Affected before 4:3.08-461.module_el8.6.0+2766+8bf0b7ce
- Affected before 4:3.08-461.module_el8.6.0+3181+91434291
182 further packages in AlmaLinux 8 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- perl-Archive-Tar Fixed in 2.38-6.el9_8.2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- perl-Archive-Tar Fixed in 3.02-512.el10_2.2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- perl Fixed
A version is affected if any line below covers it.
- Affected before 4:5.32.1-474.module_el8.10.0+4162+0aac7c4c
- Affected before 4:5.32.1-474.module_el8.10.0+4240+a58b978c
- perl-Algorithm-Diff Fixed in 1.1903-10.module_el8.6.0+2766+8bf0b7ce
- perl-Archive-Tar Fixed
A version is affected if any line below covers it.
- Affected before 2.30-3.el8_10
- Affected before 2.38-5.module_el8.10.0+4240+a58b978c
- perl-Archive-Zip Fixed in 1.68-3.module_el8.6.0+2766+8bf0b7ce
- perl-Attribute-Handlers Fixed in 1.01-474.module_el8.10.0+4162+0aac7c4c
- perl-AutoLoader Fixed in 5.74-474.module_el8.10.0+4162+0aac7c4c
- perl-AutoSplit Fixed in 5.74-474.module_el8.10.0+4240+a58b978c
- perl-B Fixed
A version is affected if any line below covers it.
- Affected before 1.80-474.module_el8.10.0+4162+0aac7c4c
- Affected before 1.80-474.module_el8.10.0+4240+a58b978c
- perl-Benchmark Fixed in 1.23-474.module_el8.10.0+4162+0aac7c4c
- perl-CPAN Fixed in 2.28-5.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-DistnameInfo Fixed in 0.12-13.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-Meta Fixed in 2.150010-397.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-Meta-Requirements Fixed in 2.140-397.module_el8.6.0+2766+8bf0b7ce
- perl-CPAN-Meta-YAML Fixed in 0.018-1001.module_el8.6.0+2766+8bf0b7ce
- perl-Carp Fixed in 1.50-439.module_el8.6.0+2766+8bf0b7ce
- perl-Class-Struct Fixed in 0.66-474.module_el8.10.0+4162+0aac7c4c
- perl-Compress-Bzip2 Fixed
A version is affected if any line below covers it.
- Affected before 2.28-2.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.28-2.module_el8.6.0+3181+91434291
- perl-Compress-Raw-Bzip2 Fixed
A version is affected if any line below covers it.
- Affected before 2.096-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.096-1.module_el8.6.0+3181+91434291
- perl-Compress-Raw-Lzma Fixed
A version is affected if any line below covers it.
- Affected before 2.096-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.096-1.module_el8.6.0+3181+91434291
- perl-Compress-Raw-Zlib Fixed in 2.096-2.module_el8.10.0+3779+d5938d28
- perl-Config-Extensions Fixed in 0.03-474.module_el8.10.0+4240+a58b978c
- perl-Config-Perl-V Fixed in 0.32-441.module_el8.6.0+2766+8bf0b7ce
- perl-DBM_Filter Fixed in 0.06-474.module_el8.10.0+4162+0aac7c4c
- perl-DB_File Fixed
A version is affected if any line below covers it.
- Affected before 1.855-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 1.855-1.module_el8.6.0+3181+91434291
- perl-Data-Dumper Fixed
A version is affected if any line below covers it.
- Affected before 2.174-440.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.174-440.module_el8.6.0+3181+91434291
- perl-Data-OptList Fixed in 0.110-7.module_el8.6.0+2766+8bf0b7ce
- perl-Data-Section Fixed in 0.200007-8.module_el8.6.0+2766+8bf0b7ce
- perl-Devel-PPPort Fixed
A version is affected if any line below covers it.
- Affected before 3.62-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 3.62-1.module_el8.6.0+3181+91434291
- perl-Devel-Peek Fixed
A version is affected if any line below covers it.
- Affected before 1.28-474.module_el8.10.0+4162+0aac7c4c
- Affected before 1.28-474.module_el8.10.0+4240+a58b978c
- perl-Devel-SelfStubber Fixed in 1.06-474.module_el8.10.0+4240+a58b978c
- perl-Devel-Size Fixed
A version is affected if any line below covers it.
- Affected before 0.83-3.module_el8.6.0+2766+8bf0b7ce
- Affected before 0.83-3.module_el8.6.0+3181+91434291
- perl-Digest Fixed in 1.20-1.module_el8.6.0+2766+8bf0b7ce
- perl-Digest-MD5 Fixed
A version is affected if any line below covers it.
- Affected before 2.58-1.module_el8.6.0+2766+8bf0b7ce
- Affected before 2.58-1.module_el8.6.0+3181+91434291
- perl-Digest-SHA Fixed
A version is affected if any line below covers it.
- Affected before 1:6.02-2.module_el8.6.0+2766+8bf0b7ce
- Affected before 1:6.02-2.module_el8.6.0+3181+91434291
- perl-DirHandle Fixed in 1.05-474.module_el8.10.0+4162+0aac7c4c
- perl-Dumpvalue Fixed in 2.27-474.module_el8.10.0+4162+0aac7c4c
- perl-DynaLoader Fixed
A version is affected if any line below covers it.
- Affected before 1.47-474.module_el8.10.0+4162+0aac7c4c
- Affected before 1.47-474.module_el8.10.0+4240+a58b978c
- perl-Encode Fixed
A version is affected if any line below covers it.
- Affected before 4:3.08-461.module_el8.6.0+2766+8bf0b7ce
- Affected before 4:3.08-461.module_el8.6.0+3181+91434291
- perl-Encode-Locale Fixed in 1.05-10.module_el8.6.0+2766+8bf0b7ce
- perl-Encode-devel Fixed
A version is affected if any line below covers it.
- Affected before 4:3.08-461.module_el8.6.0+2766+8bf0b7ce
- Affected before 4:3.08-461.module_el8.6.0+3181+91434291
182 further packages in CloudLinux 8 not shown (first 40 listed).
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- perl-Archive-Tar Fixed in 2.38-6.el9_8.2
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- perl-Archive-Tar Fixed in 3.02-512.el10_2.2
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- perl No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- perl No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- perl Fixed in 5.42.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- perl Fixed in 5.38.2-3.2ubuntu0.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- perl No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.