CVE-2026-128241: libexpat xmlwf through 2.10.0 Symlink Following via -d Output Directory
libexpat project · libexpat
Vendor fix available · Affected: libexpat project · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
The xmlwf tool in libexpat through 2.10.0 contains a symlink following vulnerability because -d output mode opens files with fopen("wb"), which follows symbolic links. Local attackers with write access to the output directory can plant a symlink at the expected output name to truncate or overwrite files writable by the xmlwf user.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- libexpat project · libexpatup to and including 2.10.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- libexpat project
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-128241 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.