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CVE-2026-77113— Path Traversal Vulnerability in apport-unpack

Quick assessment

Affected
Canonical Apport
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 系统上，Canonical Apport 在 2.36.0、2.34.2 和 2.28.4 版本之前的 中存在路径穿越漏洞。攻击者可以通过在崩溃报告文件中注入受控的键名，以执行用户的权限创建或覆盖任意文件。

CVSS 6.7 · Medium EPSS 0.16% · P6

Affected Version Matrix 3

VendorProduct Version RangeStatus
Canonical Apport < 2.36.0 affected
< 2.34.2 affected
< 2.28.4 affected
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I. Basic Information for CVE-2026-77113

Vulnerability Information
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Vulnerability Title
Path Traversal Vulnerability in apport-unpack
Source: CVE Program / CVE List V5
Vulnerability Description
Path traversal in apport-unpack in Canonical Apport before 2.36.0, 2.34.2, and 2.28.4 on Linux allows an attacker to create or overwrite arbitrary files with the privileges of the executing user via an attacker controlled key names in crash report files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Canonical Apport 0 ~ 2.36.0 -

II. Public POCs for CVE-2026-77113

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-77113

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Patches & Fixes for CVE-2026-77113 (2)

Same Patch Batch · Canonical · 2026-08-20 · 3 CVEs total

CVE-2026-61897 7.8 HIGH accountsservice: incomplete privilege drop when running Ubuntu-specific language helper sc
CVE-2026-61898 7.8 HIGH accountsservice: shell injection via attacker-controlled ~/.pam_environment in Ubuntu lang

IV. Related Vulnerabilities

Same product: Apport
Same vendor: Canonical
Same weakness: CWE-23

V. Comments for CVE-2026-77113

Anonymous User
2026-08-21 15:14:02

https://github.com/0xROI/CVE-2026-77113

Anonymous User
2026-08-21 15:14:07

https://github.com/0xROI/CVE-2026-77113

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