CVE-2026-108262

DDEV incomplete tar symlink traversal fix allows host file overwrite - Incomplete fix of CVE-2026-32885

publishedCWE-22CWE-59

DDEV is an open-source tool for running local web development environments for PHP and Node.js. From 1.25.2 until 1.25.4, Untar in pkg/archive/archive.go validates an absolute tar symlink target after rebasing it beneath dest, but creates the symlink with the raw absolute Linkname. A crafted archive can therefore plant a host-absolute symlink and use a following regular-file entry to write outside the extraction directory. The flaw is reachable through remote add-on retrieval and database or file imports, and overwriting shell startup files, Git hooks, or cron entries can lead to code execution in the DDEV user's context. Unzip is not affected. This issue is fixed in version 1.25.4.

Technical severity6.5 mediumCVSS 3.1 · CNA: GitHub_M

Published2026-11-06Source updated 2026-11-11

Collected2026-11-114 attributed sources

Fixes and workarounds

Fix

github.com/ddev/ddev (Go): OSV reports a fixed version 1.25.4. Check the advisory for supported release branches.

Source: OSV GHSA-9hq4-hm3j-jmph

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
ddev ddev	>= 1.25.2, < 1.25.4 (affected)	CNA: GitHub_M
github.com/ddev/ddev `github.com/ddev/ddev` Go	≥ 0; < 1.25.4 (affected, semver); OSV events: introduced 0; fixed 1.25.4 Source events (semver) `[ { "introduced": "0" }, { "fixed": "1.25.4" } ]` Other versions: unaffected	OSV GHSA-9hq4-hm3j-jmph

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 6.5 medium	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`	CNA: GitHub_M
3.1 / 6.5 medium	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`	NVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://github.com/ddev/ddev/security/advisories/GHSA-9hq4-hm3j-jmphCNA: GitHub_M · x_refsource_CONFIRM
https://github.com/ddev/ddev/security/advisories/GHSA-9hq4-hm3j-jmph[email protected]
https://github.com/advisories/GHSA-9hq4-hm3j-jmphOSV / GitHub Security Advisories · advisory
https://osv.dev/vulnerability/GHSA-9hq4-hm3j-jmphOSV / GitHub Security Advisories · osv

Prioritization

CISA known exploited vulnerabilities

No KEV listing in collected sources. This does not establish that exploitation is absent.

EPSS

0.31% estimated probability of exploitation in the next 30 days; percentile 23.65.
Assessed 2026-11-10 by FIRST.

SSVC

Exploitation: none
Automatable: no
Technical impact: partial

ADP: CISA-ADP · 2026-11-11

Provenance

CNA: GitHub_M
Source updated 2026-11-11
Retrieved 2026-11-11

NVD
Source updated 2026-11-06
Retrieved 2026-11-07

OSV / GitHub Security Advisories
Source updated 2026-11-09
Retrieved 2026-11-11

FIRST EPSS
Source updated Not reported
Retrieved 2026-11-11

Disclosure revision
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