Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-27776

CVE-2022-27776MEDIUM

n/a https://github.com/curl/curl — A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redi…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  H  N  N    6.5   .0410   90.6     —

AFFECTED
  Product                       Versions                Fixed
  https://github.com/curl/curl  fixed in curl 7.83.0 –  —

TIMELINE
  Mar 23  Reserved by hackerone
  Jun 1   Published (CNA: hackerone)
  Oct 14  ENRICHED — CVE-2022-27776 (https://github.com/curl/curl). Received CVSS 6.5 and CPE data from NVD.
  Oct 14  EXPLOIT PUBLISHED — CVE-2022-27776 (https://github.com/curl/curl). Public exploit reference added.

CWE-522 · CNA: hackerone · CVSS v3.1 · 8 references · NVD status: Modified

Description

A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
March 23, 2022	Reserved	Reserved by hackerone
June 1, 2022	Published	Published (CNA: hackerone)
October 14, 2026	ENRICHED	ENRICHED — CVE-2022-27776 (https://github.com/curl/curl). Received CVSS 6.5 and CPE data from NVD.
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2022-27776 (https://github.com/curl/curl). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	https://github.com/curl/curl	—	fixed in curl 7.83.0	—

Weaknesses

CWE-522

References (8)

https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://hackerone.com/reports/1547048 [Exploit, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html [Mailing List, Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7N5ZBWLNNPZKFK7Q4KEHGCJ2YELQEUJP/ [Mailing List, Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKKOQXPYLMBSEVDHFS32BPBR3ZQJKY5B/ [Mailing List, Third Party Advisory]
https://security.gentoo.org/glsa/202212-01 [Third Party Advisory]
https://security.netapp.com/advisory/ntap-20220609-0008/ [Third Party Advisory]
https://www.debian.org/security/2022/dsa-5197 [Third Party Advisory]

Authoritative record: CVE-2022-27776 at cve.org

Weaknesses: CWE-522

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-27776 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 Monday, October 19, 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.