tar filter allows writing outside destination via empty-named symlink
Assessment
- Severity
- Moderate
- CVSS base score
- Not published
- Impact
- Not stated
- EPSS, next 30 days
- Not scored yet
- Public exploit code
- No Nuclei template lists it
- Exploitability
- Not assessed
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- Mariner
- Weakness
- —
- Issued by
- PSF
- Published
- 24 Oct 2026 · October 2026
- Last revised
- 26 Oct 2026Information published.
Updates that fix it
0 KBsNo KB listed
MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.
Affected products
3 affected products
- azl3 python-py 1.11.0-1 on Azure Linux 3.0
- azl3 python3 3.12.14-2 on Azure Linux 3.0
- azl3 tensorflow 2.16.1-11 on Azure Linux 3.0
What changed
First observed 24 Oct 2026- 26 Oct 2026 · 07:26:10 UTC Last revised25 Oct 2026 01:02 UTC → 26 Oct 2026 01:48 UTC
- 26 Oct 2026 · 07:26:10 UTC Affected productsazl3 python-py 1.11.0-1 on Azure Linux 3.0, azl3 python3 3.12.14-2 on Azure Linux 3.0 → azl3 python-py 1.11.0-1 on Azure Linux 3.0, azl3 python3 3.12.14-2 on Azure Linux 3.0, azl3 tensorflow 2.16.1-11 on Azure Linux 3.0
- 25 Oct 2026 · 07:41:18 UTC Last revised24 Oct 2026 01:01 UTC → 25 Oct 2026 01:02 UTC
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Explore global source statements, affected packages and advisory history for CVE-2026-114583. The catalog has a separate collection scope from Microsoft release records.
Collected exploitation and prediction evidence
Risk source coverageCISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.
No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.
cve-program · CVE-2026-114583
Publishedtar filter allows writing outside destination via empty-named symlink
tarfile.tar_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() with filter="tar" to write files outside the destination directory, subject to the permissions of the extracting process. This is the tarfile.tar_filter counterpart of CVE-2026-7774, which covered tarfile.data_filter.
- Source published
- 22 Oct 2026 20:57:36 UTC
- Source modified
- 26 Oct 2026 00:37:13 UTC
- Observed here
- 26 Oct 2026 02:35:10 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 4.0 · 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N