Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-7774

30
FAUCET Score

tarfile.data_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() to write files outside the destination directory, subject to the permissions of the extracting process.

First published: Jun 4, 2026Last modified: Jul 7, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, < 3.13.14CPE match
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
>= 3.14.0, < 3.14.6CPE match
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

6.9MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
NONE
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
45.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 48th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

microsoftpatch availablevia msrc
Product: azl3 python3 3.12.9-11 on Azure Linux 3.0Fixed in: 3.12.9-13
microsoftpatch availablevia msrc
Product: azl3 python3 3.12.9-13 on Azure Linux 3.0Fixed in: 3.12.9-13
microsoftpatch availablevia msrc
Product: 21379-17084Fixed in: 3.12.9-13
microsoftpatch availablevia msrc
Product: 21492-17084Fixed in: 3.12.9-13
ubuntupatch availablevia ubuntu_usn
Product: python3.10 (jammy)Fixed in: 3.10.12-1~22.04.16
ubuntupatch availablevia ubuntu_usn
Product: python3.12 (noble)Fixed in: 3.12.3-1ubuntu0.15
ubuntupatch availablevia ubuntu_usn
Product: python3.14 (resolute)Fixed in: 3.14.4-1ubuntu0.1

Vendor Advisories (2)

ubuntuUSN-8509-1

Python vulnerabilities

Jul 6, 2026
microsoft2026-Jun/CVE-2026-7774Moderate

tarfile.data_filter path traversal bypass allows writing outside the extraction directory

Jun 4, 2026

References

openwall.com / lists/oss-security/2026/06/04/9
github.com / python/cpython/commit/0478bd83d82b255e0f29f613367a59d261e7eaa2
github.com / python/cpython/commit/0d28f5e46e151718972dfabd91205444d0037b6d
github.com / python/cpython/commit/10a13bee3c24f9c62b602e696334ff2272a40efc
github.com / python/cpython/commit/578411982c16f753f4893532510099ef665117da
github.com / python/cpython/commit/5cf47a248c35c375d610b87b2f72fd1ed454b558
github.com / python/cpython/commit/74cca9a92fb7d653e404843a56b8bdc7b0afdbbf
github.com / python/cpython/commit/c063191cb7f9170f9565e305f8aa2b79ab2bf609
github.com / python/cpython/issues/149486
github.com / python/cpython/pull/149487
mail.python.org / archives/list/[email protected]/thread/4FU62L2M6RMMHT2QPGQNPEHHUND7CEX5