CVE-2025-1861 · cross-distro fix matrix

CVE-2025-1861: In PHP from 8.1.* before 8.1.32, from 8.2.* before 8.2.28, from 8.3.* before 8.3.19, from 8.4.* before 8.4.5, when parsing HTTP redirect in the response to an HTTP request, there is currently limit on the location value size caused by limited size of the location buffer to 1024. However as per RFC91

Affects 7 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-1861 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

php7.4→ fixed in7.4.33-1+deb11u8urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php7.4
```

Debian bookworm

Source: Debian Security Tracker

php8.2→ fixed in8.2.28-1~deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php8.2
```

Debian trixie

Source: Debian Security Tracker

php8.4→ fixed in8.4.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php8.4
```

Alpine v3.20

Source: Alpine secdb

php82→ fixed in8.2.28-r0
```
apk update && apk add --upgrade php82
```

Alpine v3.21

Source: Alpine secdb

php82→ fixed in8.2.28-r0
```
apk update && apk add --upgrade php82
```
php83→ fixed in8.3.18-r0
```
apk update && apk add --upgrade php83
```

Alpine edge

Source: Alpine secdb

php83→ fixed in8.3.18-r0
```
apk update && apk add --upgrade php83
```

Alpine v3.19

Source: Alpine secdb

php81→ fixed in8.1.32-r0
```
apk update && apk add --upgrade php81
```

Are YOU affected by CVE-2025-1861?

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

Continuous monitoring beats manual checking

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