Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-7168

CVE-2026-7168MEDIUM

curl curl — cross-proxy Digest auth state leak

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  L  N  N    5.3   .0059   46.4     —

AFFECTED
  Product  Versions                                    Fixed
  curl     7.12.0 –                                    —
  curl     fc6eff13b5414caf6edf22d73a3239e074a04216 –  —
  curl     8.19.0 –                                    —

TIMELINE
  Apr 27  Reserved by curl
  May 13  Published (CNA: curl)
  Sep 15  EXPLOIT PUBLISHED — CVE-2026-7168 (curl). Public exploit reference added.

CWE-294 · CNA: curl · CVSS v3.1 · 4 references · NVD status: Modified

Description

Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 27, 2026	Reserved	Reserved by curl
May 13, 2026	Published	Published (CNA: curl)
September 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-7168 (curl). Public exploit reference added.

Affected

Affected products and packages — 3 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
curl	curl	—	7.12.0	—
curl	curl	—	fc6eff13b5414caf6edf22d73a3239e074a04216	—
curl	curl	—	8.19.0	—

Weaknesses

CWE-294

References (4)

http://www.openwall.com/lists/oss-security/2026/04/29/14 [Mailing List, Patch]
https://curl.se/docs/CVE-2026-7168.html [Patch, Vendor Advisory]
https://curl.se/docs/CVE-2026-7168.json [Vendor Advisory]
https://hackerone.com/reports/3697719 [Exploit, Issue Tracking]

Authoritative record: CVE-2026-7168 at cve.org

Vendors: curl

Weaknesses: CWE-294

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-7168 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 Sunday, October 4, 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.