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CVE-2026-33752

Lexiforest Curl Cffi server-side request forgery (SSRF)

8.6 HIGHPublic exploitEPSS 0.45%
  1. Published6 Apr 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected products

Lexiforest Curl Cffi0.15.0 · < 0.15.0

Remediation

Fixed in
Lexiforest Curl Cffi≥ 0.15.0

References

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Frequently asked

Is CVE-2026-33752 being actively exploited?

CVE-2026-33752 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.45%.

How severe is CVE-2026-33752?

CVE-2026-33752 has a CVSS 3.1 base score of 8.6, rated high. EPSS estimates a 0.45% probability of exploitation.

Which products are affected by CVE-2026-33752?

Affected products include Lexiforest Curl Cffi.

How do I fix CVE-2026-33752?

Upgrade affected software to a fixed version, for example Lexiforest Curl Cffi 0.15.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33752 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.