CVE-2026-92392

highpriority · track · 10EPSS 0.013 · 70 %ileexploit · PoCDEFRRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

1.28% (70th) EPSS

CVSS 8.1 · high

Is it mine?

5 products

Check your exposure

Who says so?

4 sources

fstec_bdu · cert_bund · certfr · osv

EPSS · scored 2026-10-27

During an upload, curl mishandles HTTP/2 `RST_STREAM` received from the server (with reason `HTTP_1_1_REQUIRED` or `REFUSED_STREAM`) leading to a use after free of a `struct Curl_easy` object.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.1highAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 2.2 · impact 5.9

v3.17.7highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA ADP (Vulnrichment)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USCWE-416USCWE-416US

exploits (1)

Public proof-of-concept and weaponised exploit code.

ashu7ank/CVE-2026-92392Defensive exposure checker and poc for cURL CVE-2026-92392PoC · poc_in_github

affected products (5)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source Open Source cURL <8.23.0< 8.23.0cert_bundDE
Open Source cURL< 8.23.0cert_bundDE
Daniel Stenberg cURL8.12.0 → 8.22.0fstec_bduRU

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3904cURL: Mehrere SchwachstellenDeutsch2026-10-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand auszulösen.
CERTFR-2026-AVI-1307Multiples vulnérabilités dans CurlFrançais2026-10-14vendor · certfrFR
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
CURL-CVE-2026-92392HTTP/2 upload Use-After-Free2026-10-14vendor · osvUS
During an upload, curl mishandles HTTP/2 `RST_STREAM` received from the server (with reason `HTTP_1_1_REQUIRED` or `REFUSED_STREAM`) leading to a use after free of a `struct Curl_easy` object.

also known as (1)

Other names and identifiers for this entity.

BDU:2026-16619 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu cert_bund certfr osv NVD CVE.org MITRE

published 2026-10-14modified 2026-10-18

references (5) nvd

External citations — patches, advisories, analysis.

scry

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