Description
A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | php-pecl-http | 3.1.0+2.6.0-1 | — |
| Debian 13 | php-pecl-http | 3.1.0+2.6.0-1 | — |
| Debian 12 | php-pecl-http | 3.1.0+2.6.0-1 | — |
| Debian 8 | php-pecl-http | 2.0.4-1+deb8u1 | DLA-1929-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | php-pecl-http | No fix yet | — |
Advisories 1
- DLA-1929-1 php-pecl-http - security update Debian Security (DSA / DLA) · Mar 9, 2026