CVE-2025-24855 · cross-distro fix matrix

CVE-2025-24855: numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored. This is related to xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal.

Affects 8 Linux releases across 10 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-24855 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libxslt→ fixed in1.1.34-4+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libxslt
```

Debian bookworm

Source: Debian Security Tracker

libxslt→ fixed in1.1.35-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libxslt
```

Debian trixie

Source: Debian Security Tracker

libxslt→ fixed in1.1.35-1.2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libxslt
```

Alpine v3.20

Source: Alpine secdb

libxslt→ fixed in1.1.39-r2
```
apk update && apk add --upgrade libxslt
```

Alpine v3.21

Source: Alpine secdb

libxslt→ fixed in1.1.42-r2
```
apk update && apk add --upgrade libxslt
```

qt5-qtwebengine→ fixed in5.15.17-r7

apk update && apk add --upgrade qt5-qtwebengine

Alpine edge

Source: Alpine secdb

libxslt→ fixed in1.1.43-r0
```
apk update && apk add --upgrade libxslt
```

qt6-qtwebengine→ fixed in6.8.2-r3

apk update && apk add --upgrade qt6-qtwebengine

Alpine v3.18

Source: Alpine secdb

libxslt→ fixed in1.1.38-r1
```
apk update && apk add --upgrade libxslt
```

Alpine v3.19

Source: Alpine secdb

libxslt→ fixed in1.1.39-r1
```
apk update && apk add --upgrade libxslt
```

Are YOU affected by CVE-2025-24855?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

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