CVE-2020-15094
No exploitation reported by the sources we read.
- Published2020-09-02
- Fixed in5.1.5 · 4.4.13
- WeaknessCWE-212
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
In Symfony before versions 4.4.13 and 5.1.5, the CachingHttpClient class from the HttpClient Symfony component relies on the HttpCache class to handle requests. HttpCache uses internal headers like X-Body-Eval and X-Body-File to control the restoration of cached responses. The class was initially written with surrogate caching and ESI support in mind (all HTTP calls come from a trusted backend in that scenario). But when used by CachingHttpClient and if an attacker can control the response for a request being made by the CachingHttpClient, remote code execution is possible. This has been fixed in versions 4.4.13 and 5.1.5.
Timeline
dates in UTC- 2020-09-0218:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-15094?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-15094?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · OSV| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.1 | ≥ 5.1.0, < 5.1.5 | 5.1.5 | NVD · OSV |
| 5.x | ≥ 5.0.0, < 5.1.5 | 5.1.5 | OSV |
| 4.4 | ≥ 4.4.0, < 4.4.13 | 4.4.13 | NVD · OSV |
| 4.x | ≥ 4.3.0, < 4.4.13 | 4.4.13 | OSV |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 32.x | = 32 | no fix published | NVD |
| 33.x | = 33 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.1 | ≥ 5.1.0, < 5.1.5 | 5.1.5 | NVD |
| 4.4 | ≥ 4.4.0, < 4.4.13 | 4.4.13 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Sensiolabs httpclient to 5.1.5 · 4.4.13
Advisories and patches
- github.comPatch
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2020-09-02
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2020-15094?
Is CVE-2020-15094 actively exploited?
What is the CVSS score for CVE-2020-15094?
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