CVE-2026-33752Disclosure(lexiforest / curl_cffi)

LOWCVSS 8.6 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch lexiforest curl_cffi systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-918

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • curl_cffi

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 3 signals
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 2d ago at 1 mentions (2026-04-04); latest day: 1
  • 3 total mentions across 3 days

Affected systems

Vendors
Products
curl_cffi

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-04-04: 1Mentions · 2026-04-06: 1Mentions · 2026-04-07: 1Patch / Workaround · 2026-04-04: 1Patch / Workaround · 2026-04-06: 1Patch / Workaround · 2026-04-07: 1Technical Details · 2026-04-04: 1Technical Details · 2026-04-06: 104-0404-0604-07
Signal classification3 categories
Disclosure
133.3%
Patch
133.3%
General
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-041
Disclosure1
2026-04-061
Patch1
2026-04-071
General1
Full discourse3 posts
  • Firmis Labs@FirmisLabs
    General

    CVE-2026-33752 · NIST 8.6/10 https://nvd.nist.gov/vuln/detail/CVE-2026-33752 ask your AI: "check if my project uses curl_cffi and if it's below version 0.15.0" then: "update curl_cffi to the latest version and make sure nothing breaks in my HTTP requests"

    Post summary

    The post references a high‑severity CVE and suggests mitigating it by updating the curl_cffi library, but it does not provide technical details, PoC, or evidence of exploitation.

    1000021
    1 followersView on X
  • CVEFind.com@CveFindCom
    Patch

    [CVE-2026-33752: HIGH] Python binding curl_cffi < 0.15.0 allows requests to internal IPs & auto-follows redirects, making it exploitable for redirecting to internal services. Update to version 0.15.0 for fix.#cve,CVE-2026-33752,#cybersecurity https://cvefind.com/CVE-2026-33752

    Post summary

    CVE‑2026‑33752 is a high‑severity flaw in curl_cffi <0.15.0 that permits internal IP access and auto‑redirects, potentially enabling internal service exploitation; updating to 0.15.0 fixes the issue.

    0000036
    619 followersView on X
  • PulsePatch.io@pulsepatchio
    Disclosure

    `curl_cffi` is impacted by CVE-2026-33752, a redirect-based SSRF vulnerability allowing internal network access with TLS impersonation bypass. Review applications using `curl_cffi` for URL input validation. #SSRF #Python #Infosec https://www.pulsepatch.io/posts/cve-2026-33752-curl-cffi-ssrf-vulnerability

    Post summary

    The tweet highlights the disclosure of CVE‑2026‑33752, a redirect‑based SSRF vulnerability in curl_cffi, warns of potential internal network access via TLS impersonation bypass, and advises input validation as a mitigation.

    0000071
    11 followersView on X
CPE platform detail5 entries

5 of 5 entries

PartVendorProductVersionTarget SWTarget HW
Applexiforestcurl_cffi-python-
Applexiforestcurl_cffi0.15.0python-
Applexiforestcurl_cffi0.15.0python-
Applexiforestcurl_cffi0.15.0python-
Applexiforestcurl_cffi0.15.0python-

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