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NVD / CVE Program· CNA GitHub_M

CVE-2025-58058: github.com/ulikunitz/xz leaks memory when decoding a corrupted multiple LZMA archives

MediumCVSS 5.3 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.43% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: ulikunitz xz 0.5.14; azl3 containerized-data-importer 1.57.0-15 on Azure Linux 3.0 1.57.0-16; azl3 containerized-data-importer 1.57.0-16 on Azure Linux 3.0 1.57.0-16.

Low priority for now. Upgrade to ulikunitz xz 0.5.14; azl3 containerized-data-importer 1.57.0-15 on Azure Linux 3.0 1.57.0-16; azl3 containerized-data-importer 1.57.0-16 on Azure Linux 3.0 1.57.0-16 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

xz is a pure golang package for reading and writing xz-compressed files. Prior to version 0.5.14, it is possible to put data in front of an LZMA-encoded byte stream without detecting the situation while reading the header. This can lead to increased memory consumption because the current implementation allocates the full decoding buffer directly after reading the header. The LZMA header doesn't include a magic number or has a checksum to detect such an issue according to the specification. Note that the code recognizes the issue later while reading the stream, but at this time the memory allocation has already been done. This issue has been patched in version 0.5.14.

Published
Aug 28, 2025
Updated
Sep 25, 2026
EPSS
0.4% · 37th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
5.3
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-58058

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • ulikunitz xz

    • < 0.5.14affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12golang-github-ulikunitz-xzfrom 0—
Debian:14golang-github-ulikunitz-xzbefore 0.5.15-10.5.15-1
Gogithub.com/ulikunitz/xzbefore 0.5.150.5.15
openSUSE:Leap 15.6govulncheck-vulndbbefore 0.0.20250918T182144-150000.1.107.10.0.20250918T182144-150000.1.107.1
openSUSE:Leap 15.6rekorbefore 1.4.3-150400.4.28.11.4.3-150400.4.28.1
openSUSE:Leap 15.6warewulf4before 4.6.4-150500.6.37.14.6.4-150500.6.37.1
openSUSE:Leap 16.0alloybefore 1.11.3-160000.1.11.11.3-160000.1.1
openSUSE:Leap 16.0containerized-data-importer1.65before 1.65.0-160000.3.11.65.0-160000.3.1
openSUSE:Leap 16.0haulerbefore 1.3.1-bp160.1.11.3.1-bp160.1.1
openSUSE:Leap 16.0sbctlbefore 0.18-bp160.1.10.18-bp160.1.1
openSUSE:Leap 16.0tailscalebefore 1.94.1-bp160.1.11.94.1-bp160.1.1
openSUSE:Leap 16.0warewulf4before 4.7.0-bp160.1.14.7.0-bp160.1.1
openSUSE:Leap 16.0warewulf4before 4.6.4-bp160.1.14.6.4-bp160.1.1
openSUSE:Tumbleweedalloybefore 1.11.2-2.11.11.2-2.1
openSUSE:Tumbleweedcontainerized-data-importer1.65before 1.65.0-2.11.65.0-2.1
openSUSE:Tumbleweedcontainerized-data-importer1.66before 1.66.0-1.11.66.0-1.1
openSUSE:Tumbleweedgovulncheck-vulndbbefore 0.0.20250917T170349-1.10.0.20250917T170349-1.1
openSUSE:Tumbleweedhaulerbefore 1.3.1-1.11.3.1-1.1
openSUSE:Tumbleweedregclientbefore 0.9.2-1.10.9.2-1.1
openSUSE:Tumbleweedrekorbefore 1.4.1-1.11.4.1-1.1
openSUSE:Tumbleweedsbctlbefore 0.17-2.10.17-2.1
openSUSE:Tumbleweedtailscalebefore 1.86.5-1.11.86.5-1.1
openSUSE:Tumbleweedtrivybefore 0.66.0-1.10.66.0-1.1
openSUSE:Tumbleweedvelociraptorbefore 0.7.0.4.git185.a5708584-2.10.7.0.4.git185.a5708584-2.1

+7

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
ulikunitz xz0.5.14 · descriptionVendor (CNA)
azl3 containerized-data-importer 1.57.0-15 on Azure Linux 3.01.57.0-16 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 containerized-data-importer 1.57.0-16 on Azure Linux 3.01.57.0-16 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 jx 3.10.182-2 on Azure Linux 3.03.10.182-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 jx 3.10.182-3 on Azure Linux 3.03.10.182-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 packer 1.9.5-10 on Azure Linux 3.01.9.5-10 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 packer 1.9.5-9 on Azure Linux 3.01.9.5-10 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 skopeo 1.14.4-5 on Azure Linux 3.01.14.4-6 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 skopeo 1.14.4-6 on Azure Linux 3.01.14.4-6 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 containerized-data-importer 1.55.0-24 on CBL Mariner 2.01.55.0-25 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 containerized-data-importer 1.55.0-25 on CBL Mariner 2.01.55.0-25 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 cri-o 1.22.3-15 on CBL Mariner 2.01.22.3-16 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 cri-o 1.22.3-16 on CBL Mariner 2.01.22.3-16 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 jx 3.2.236-22 on CBL Mariner 2.03.2.236-23 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 jx 3.2.236-23 on CBL Mariner 2.03.2.236-23 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 packer 1.9.5-14 on CBL Mariner 2.01.9.5-15 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 packer 1.9.5-15 on CBL Mariner 2.01.9.5-15 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 skopeo 1.14.2-11 on CBL Mariner 2.01.14.2-12 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 skopeo 1.14.2-12 on CBL Mariner 2.01.14.2-12 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 terraform 1.3.2-26 on CBL Mariner 2.01.3.2-27 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 terraform 1.3.2-27 on CBL Mariner 2.01.3.2-27 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:golang-github-ulikunitz-xz0.5.15-1 · Debian:14Package registry (OSV)
Go:github.com/ulikunitz/xz0.5.15Package registry (OSV)
opensuse:alloy1.11.2-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:containerized-data-importer1.651.65.0-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:containerized-data-importer1.661.66.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:govulncheck-vulndb0.0.20250918T182144-150000.1.107.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:hauler1.3.1-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:regclient0.9.2-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:rekor1.4.3-150400.4.28.1 · openSUSE:Leap 15.6Package registry (OSV)

+10

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Not on record for this CVE: EPSS history · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

CWE-770 · Allocation of Resources Without Limits or Throttling

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records