CVE-2020-24275 json
A HTTP response header injection vulnerability in Swoole v4.5.2 allows attackers to execute arbitrary code via supplying a crafted URL.
published 2023-07-20 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-17010
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
A HTTP response header injection vulnerability in Swoole v4.5.2 allows attackers to execute arbitrary code via supplying a crafted URL.
Patch / fix
- github.com/swoole/swoole-src#3539 pull request
- github.com/swoole/swoole-src#3545 pull request
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blog.cal1.cn https://blog.cal1.cn/post/HTTP%20Response%20Header%20Injection%20in%20Swoole%3C%3D4.5.2 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
github.com
/swoole/swoole-src/pull/3539
patch, vendor-advisory
-
github.com
/swoole/swoole-src/pull/3545
patch, vendor-advisory
-
blog.cal1.cn
/post/HTTP%20Response%20Header%20Injection%20in%20Swoole%3C%3D4.5.2
exploit, third-party-advisory
-
portswigger.net
/kb/issues/00200200_http-response-header-injection
technical-description
Sources
- CVE List CVE-2020-24275
- NVD CVE-2020-24275
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