FKIE_CVE-2026-33752
Vulnerability from fkie_nvd - Published: 2026-04-06 16:16 - Updated: 2026-04-09 18:10
Severity ?
Summary
curl_cffi is the a Python binding for curl. Prior to 0.15.0, curl_cffi does not restrict requests to internal IP ranges, and follows redirects automatically via the underlying libcurl. Because of this, an attacker-controlled URL can redirect requests to internal services such as cloud metadata endpoints. In addition, curl_cffi’s TLS impersonation feature can make these requests appear as legitimate browser traffic, which may bypass certain network controls. This vulnerability is fixed in 0.15.0.
References
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmpp | Exploit, Vendor Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmpp | Exploit, Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| lexiforest | curl_cffi | * | |
| lexiforest | curl_cffi | 0.15.0 | |
| lexiforest | curl_cffi | 0.15.0 | |
| lexiforest | curl_cffi | 0.15.0 | |
| lexiforest | curl_cffi | 0.15.0 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:lexiforest:curl_cffi:*:*:*:*:*:python:*:*",
"matchCriteriaId": "5FEECC54-A1DD-4B1C-B8AF-D7DA6004B6C4",
"versionEndExcluding": "0.15.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta1:*:*:*:python:*:*",
"matchCriteriaId": "3E631217-0FE4-4470-B758-2869B22A9331",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta2:*:*:*:python:*:*",
"matchCriteriaId": "AFB5A6A0-1EBE-4059-8105-C96CDAB06EE3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta3:*:*:*:python:*:*",
"matchCriteriaId": "99E5BB3A-55C5-40C5-9952-C2F9DAB5B0B1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lexiforest:curl_cffi:0.15.0:beta4:*:*:*:python:*:*",
"matchCriteriaId": "79ECE465-3520-45F5-B537-98A85A186CF0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "curl_cffi is the a Python binding for curl. Prior to 0.15.0, curl_cffi does not restrict requests to internal IP ranges, and follows redirects automatically via the underlying libcurl. Because of this, an attacker-controlled URL can redirect requests to internal services such as cloud metadata endpoints. In addition, curl_cffi\u2019s TLS impersonation feature can make these requests appear as legitimate browser traffic, which may bypass certain network controls. This vulnerability is fixed in 0.15.0."
}
],
"id": "CVE-2026-33752",
"lastModified": "2026-04-09T18:10:21.143",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.0,
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2026-04-06T16:16:34.140",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmpp"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/lexiforest/curl_cffi/security/advisories/GHSA-qw2m-4pqf-rmpp"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-918"
}
],
"source": "security-advisories@github.com",
"type": "Primary"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…