Vulnerability · Published Aug 20, 2026 · Assigned by GitHub_M

CVE-2026-63481Hurl: Cookies in Cookies section leak when redirecting to a different host

Medium 6.9

In plain English

A medium-severity security flaw in hurl from Orange-OpenSource. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.7%top 48.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Hurl is a command line tool that runs and tests HTTP requests defined in plain text files. In version 8.0.1 and earlier, the redirect handling in packages/hurl/src/http/client.rs strips Authorization and Cookie headers and basic-auth credentials when a redirect changes host, but it carries RequestSpec.cookies created from the dedicated [Cookies] section into the redirected request. An attacker-controlled redirect can therefore receive authentication or session cookies that should remain scoped to the original host. Cookies supplied through a raw Cookie header are stripped and are not affected by this specific path. This issue is reported as fixed in version 8.1.0.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:14rust-hurlno fix listedDEBIAN-CVE-2026-63481
Ubuntu:26.04:LTSrust-hurlno fix listedUBUNTU-CVE-2026-63481
Ubuntu:26.10rust-hurlno fix listedUBUNTU-CVE-2026-63481

Affected products (as reported)

VendorProductVersions
Orange-OpenSource hurl <= 8.0.1

Weakness: CWE-201 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References