Session cookie disclosure via cross-host redirect
Published Aug 20, 2026 · Updated Aug 20, 2026
Information disclosure in Orange Open Source Hurl 8.0.1 and earlier allows attackers to read session cookies via an attacker-controlled redirect. In packages/hurl/src/http/client.rs, the redirect path clears Authorization, Cookie, and basic-auth state when the host changes but fails to clear RequestSpec.cookies populated from the dedicated [Cookies] section before sending the redirected request. Exposure requires a .hurl file that uses the [Cookies] section and follows a redirect to a different host; raw Cookie headers are stripped, so the consequence is limited to cookie disclosure and any downstream session reuse those cookies permit.
Summary
What happened
Information disclosure in Orange Open Source Hurl 8.0.1 and earlier allows attackers to read session cookies via an attacker-controlled redirect. In packages/hurl/src/http/client.rs, the redirect path clears Authorization, Cookie, and basic-auth state when the host changes but fails to clear RequestSpec.cookies populated from the dedicated [Cookies] section before sending the redirected request. Exposure requires a .hurl file that uses the [Cookies] section and follows a redirect to a different host; raw Cookie headers are stripped, so the consequence is limited to cookie disclosure and any downstream session reuse those cookies permit.
The record
- CVE
- CVE-2026-63481
- Published
- Aug 20, 2026
- Updated
- Aug 20, 2026
- Vendor
- Orange Open Source
- Product
- Hurl
- Classifications
- CWE-201, T1539
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 20, 2026CVE publishedPublication date reported by the CVE source.
- Aug 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=<= 8.0.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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