🛡️ CVE-2024-3094 — xz
Description
Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0.
Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Changed — a successful attack reaches components beyond the vulnerable one.
- Confidentiality impact: High — total loss, or loss the attacker controls.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
CVE-2024-3094 is classified as CWE-506: Embedded Malicious Code. The product contains code that appears to be malicious in nature.
Affected software
CVE-2024-3094 is recorded against 1 package.
- xz
Timeline and source
Published on 29 March 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
access.redhat.com
bugzilla.redhat.com
www.openwall.com
www.redhat.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
www.openwall.com
access.redhat.com
ariadne.space
arstechnica.com
aws.amazon.com
blog.netbsd.org
boehs.org
bugs.debian.org
bugs.gentoo.org
bugzilla.redhat.com
bugzilla.suse.com
discourse.nixos.org
gist.github.com
github.com
github.com
github.com
gynvael.coldwind.pl
lists.debian.org
lists.freebsd.org
lwn.net
news.ycombinator.com
news.ycombinator.com
news.ycombinator.com
openssf.org
research.swtch.com
research.swtch.com
security-tracker.debian.org
Other advisories for this package
xz has other advisories on record. If you are patching this one, these are worth checking on the same host:
- RHSA-2026:7647 (published 20 Apr 2026)
- OESA-2026-1853 (9.5 Critical, published 11 Apr 2026)
- MGASA-2026-0084 (published 6 Apr 2026)
- BELL-CVE-2026-34743 (published 4 Apr 2026)
- openSUSE-SU-2026:10492-1 (published 4 Apr 2026)
- CVE-2026-34743 (5.3 Medium, published 2 Apr 2026)
- ALPINE-CVE-2026-34743 (published 2 Apr 2026)
- CGA-8crc-r3gg-jr73 (published 29 Jan 2026)
Same weakness in other software
These advisories are the same class of weakness (CWE-506: Embedded Malicious Code) in other software:
- CVE-2026-48160 (published 10 Aug 2026)
- CVE-2026-48159 (published 10 Aug 2026)
- CVE-2026-48158 (published 10 Aug 2026)
- CVE-2026-48161 (published 10 Aug 2026)
- CVE-2026-66747 (9.8 Critical, published 5 Aug 2026)
- CVE-2026-18072 (9.8 Critical, published 29 Jul 2026)
- CVE-2026-67595 (8.1 High, published 29 Jul 2026)
- CVE-2026-46412 (10.0 Critical, published 20 Jul 2026)
CVE-2024-3094 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| xz | — | — |
References
Similar Threats
- Unknown BELL-CVE-2026-34743
- Unknown ALPINE-CVE-2026-34743
- Medium CVE-2026-34743
- Unknown CGA-8crc-r3gg-jr73
- Unknown ALSA-2025:7524
Exploit Protection
Are you running xz?
CVE-2024-3094 carries CVSS 10.0 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.
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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.
