🛡️ CVE-2022-36032 — http
Description
ReactPHP's HTTP server parses encoded cookie names so malicious __Host- and __Secure- cookies can be sent
Impact
In ReactPHP's HTTP server component versions below v1.7.0, when ReactPHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host- and __Secure- confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-7070 and CVE-2020-8184 for more information.
Patches
- https://github.com/reactphp/http/commit/663c9a3b77b71463fa7fcb76a6676ffd16979dd6 - Fixed in [reactphp/http
v1.7.0](https://github.com/reactphp/http/releases/tag/v1.7.0)
Workarounds
Infrastructure or DevOps can place a reverse proxy in front of the ReactPHP HTTP server to filter out any unexpected Cookie request headers.
References
- CVE-2020-7070, https://bugs.php.net/bug.php?id=79699 and https://github.com/php/php-src/commit/6559fe912661ca5ce5f0eeeb591d928451428ed0
- CVE-2020-8184, https://hackerone.com/reports/895727 and https://github.com/rack/rack/commit/1f5763de6a9fe515ff84992b343d63c88104654c
- Originally introduced via https://github.com/reactphp/http/pull/175
Credits
- Thanks to Marco Squarcina (TU Wien) for reporting this and working with us to coordinate this security advisory
For more information
If you have any questions or comments about this advisory:
- [Join the discussion](https://github.com/orgs/reactphp/discussions/465)
- Email us at [email protected]
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.
Weakness class
CVE-2022-36032 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.
Affected software
CVE-2022-36032 is recorded against 2 packages.
- http (from 0.7.0 up to 1.7.0)
- react/http (from 0.7.0 up to 1.7.0)
Timeline and source
Published on 6 September 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.
References
github.com
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github.com
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CVE-2022-36032 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| http | 0.7.0 | 1.7.0 |
| react/http | 0.7.0 | 1.7.0 |
References
Similar Threats
- Unknown JLSEC-2026-611
- Unknown JLSEC-2026-612
- Unknown JLSEC-2026-613
- Unknown JLSEC-2026-614
- Unknown JLSEC-2026-615
More CVE 2022 advisories
Browse all of CVE 2022 in the advisory index.
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