CVE-2026-4111

EUVD-2026-12031
A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archive_read_data() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This condition results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum validation and appears structurally valid, affected applications cannot detect the issue before processing. This can allow attackers to cause persistent denial-of-service conditions in services that automatically process archives.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 49%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
Red HatRed Hat Enterprise Linux 10
0:3.7.7-5.el10_1 ≤
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< *
ADP
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support
0:3.7.7-5.el10_0 ≤
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< *
ADP
Red HatRed Hat Enterprise Linux 9
0:3.5.3-7.el9_7 ≤
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< *
ADP
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutions
0:3.5.3-2.el9_0.3 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions
0:3.5.3-5.el9_2.1 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support
0:3.5.3-4.el9_4.2 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support
0:3.5.3-6.el9_6.1 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift Container Platform 4.13
413.92.202604080111-0 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift Container Platform 4.14
414.92.202605060243-0 ≤
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< *
ADP
Red HatRed Hat OpenShift Container Platform 4.15
415.92.202605060220-0 ≤
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< *
ADP
Red HatRed Hat OpenShift Container Platform 4.16
416.94.202604211449-0 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift Container Platform 4.17
417.94.202605112123-0 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift Container Platform 4.18
418.94.202604140044-0 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift Container Platform 4.19
4.19.9.6.202604211219-0 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.2
1780681984 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.2
1775740563 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.3
1775749857 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.3
1778244559 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.3
1775680262 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.3
1778244531 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.3
1778244546 ≤
𝑥
< *
ADP
Red HatRed Hat AI Inference Server 3.3
1775680192 ≤
𝑥
< *
ADP
Red HatRed Hat Discovery 2
1775668717 ≤
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< *
ADP
Red HatRed Hat Discovery 2
1775675922 ≤
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< *
ADP
Red HatRed Hat Hardened Images
3.8.7-1.hum1 ≤
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< *
ADP
Red HatRed Hat Insights proxy 1.5
1776868961 ≤
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< *
ADP
Red HatRed Hat Update Infrastructure 5
1776868774 ≤
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< *
ADP
Red HatRed Hat Update Infrastructure 5
1776868744 ≤
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< *
ADP
Red HatRed Hat Update Infrastructure 5
1776868772 ≤
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< *
ADP
Red HatRed Hat Update Infrastructure 5
1776868842 ≤
𝑥
< *
ADP
Debian logo
Debian Releases
Debian Product
Codename
libarchive
bookworm
3.6.2-1+deb12u4
fixed
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
3.4.3-2+deb11u4
fixed
forky
3.8.8-2
fixed
sid
3.8.8-2
fixed
trixie
3.7.4-4+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libarchive
bionic
Fixed 3.2.2-3.1ubuntu0.7+esm2
released
focal
Fixed 3.4.0-2ubuntu1.5+esm1
released
jammy
Fixed 3.6.0-1ubuntu1.6
released
noble
Fixed 3.7.2-2ubuntu0.6
released
questing
Fixed 3.7.7-0ubuntu3.1
released
trusty
Fixed 3.1.2-7ubuntu2.8+esm4
released
xenial
Fixed 3.1.2-11ubuntu0.16.04.8+esm2
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
bsdtar
suse enterprise sap 15 SP4
3.5.1-150400.3.24.1
fixed
suse enterprise sap 15 SP5
3.5.1-150400.3.24.1
fixed
suse enterprise server 15 SP4
3.5.1-150400.3.24.1
fixed
suse enterprise server 15 SP5
3.5.1-150400.3.24.1
fixed
suse enterprise server 15 SP6
3.7.2-150600.3.20.1
fixed
libarchive-devel
suse enterprise desktop 15 SP7
3.7.2-150600.3.20.1
fixed
suse enterprise sap 15 SP4
3.5.1-150400.3.24.1
fixed
suse enterprise sap 15 SP5
3.5.1-150400.3.24.1
fixed
suse enterprise sap 15 SP7
3.7.2-150600.3.20.1
fixed
suse enterprise server 15 SP4
3.5.1-150400.3.24.1
fixed
suse enterprise server 15 SP5
3.5.1-150400.3.24.1
fixed
suse enterprise server 15 SP6
3.7.2-150600.3.20.1
fixed
suse enterprise server 15 SP7
3.7.2-150600.3.20.1
fixed
libarchive13
suse enterprise desktop 15 SP7
3.7.2-150600.3.20.1
fixed
suse enterprise sap 15 SP4
3.5.1-150400.3.24.1
fixed
suse enterprise sap 15 SP5
3.5.1-150400.3.24.1
fixed
suse enterprise sap 15 SP7
3.7.2-150600.3.20.1
fixed
suse enterprise server 15 SP4
3.5.1-150400.3.24.1
fixed
suse enterprise server 15 SP5
3.5.1-150400.3.24.1
fixed
suse enterprise server 15 SP6
3.7.2-150600.3.20.1
fixed
suse enterprise server 15 SP7
3.7.2-150600.3.20.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
bsdtar
RHEL 9
0:3.5.3-7.el9_7
fixed
libarchive
RHEL 9
0:3.5.3-7.el9_7
fixed
libarchive-devel
RHEL 9
0:3.5.3-7.el9_7
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
libarchive
Azure Linux 3.0
0:3.7.7-5.azl3
fixed
CBL-Mariner 2.0
0:3.6.1-9.cm2
fixed
References