Reference page — cumulative record through Tuesday, October 6, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-8926

CVE-2026-8926CRITICAL

curl curl — password leak with netrc and user in URL

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  N    9.1   .0044   36.4     —

AFFECTED
  Product  Versions                                    Fixed
  curl     8.11.1 –                                    —
  curl     e9b9bbac22c26cf67316fa8e6c6b9e831af31949 –  —
  curl     8.20.0 –                                    —

TIMELINE
  May 19  Reserved by curl
  Jul 3   EXPLOIT PUBLISHED — CVE-2026-8926 (curl). Public exploit reference added.
  Jul 3   Published (CNA: curl)
  Sep 15  EXPLOIT PUBLISHED — CVE-2026-8926 (curl). Public exploit reference added.

CWE-522 · CNA: curl · CVSS v3.1 · 3 references · NVD status: Modified

Description

When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username (without a password), like `https://user@example.com/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
May 19, 2026	Reserved	Reserved by curl
July 3, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-8926 (curl). Public exploit reference added.
July 3, 2026	Published	Published (CNA: curl)
September 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-8926 (curl). Public exploit reference added.

Affected

Affected products and packages — 3 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
curl	curl	—	8.11.1	—
curl	curl	—	e9b9bbac22c26cf67316fa8e6c6b9e831af31949	—
curl	curl	—	8.20.0	—

Weaknesses

CWE-522

References (3)

https://curl.se/docs/CVE-2026-8926.html [Patch, Vendor Advisory]
https://curl.se/docs/CVE-2026-8926.json [Vendor Advisory]
https://hackerone.com/reports/3735184 [Exploit, Issue Tracking, Third Party Advisory]

Authoritative record: CVE-2026-8926 at cve.org

Vendors: curl

Weaknesses: CWE-522

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-8926 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Tuesday, October 6, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.