CVE-2026-4873
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2026-05-13

Last updated on: 2026-05-14

Assigner: curl

Description
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasses the TLS requirement and instead transmit data unencrypted.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-13
Last Modified
2026-05-14
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-4873
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
haxx curl From 7.20.0 (inc) to 8.20.0 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-295 The product does not validate, or incorrectly validates, a certificate.
CWE-319 The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
AI Quick Actions have not been generated yet.
Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-4873. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart