CVE-2023-462186.5MediumCWE-178

CVE-2023-46218: curl vulnerability

curl

Vendor fix available · Affected: curl · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.7%probability of exploitation in the next 30 days

77th percentile

050100

Higher than 77% of scored CVEs

6.5MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

curl · curlfrom 8.4.0 up to and including 8.4.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Handling of Case Sensitivity · Input Validation and Logic
Vendor: curl
Published: December 2023
Band: Possible (1 to 10%), December 2023
Bounty reports: 2 disclosed on HackerOne

Disclosed bug bounty reports about CVE-2023-46218

The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.

curl cookie mixed case PSL bypassInternet Bug Bounty · 2023 · medium severityValid
CVE-2023-46218: cookie mixed case PSL bypasscurl · 2023 · medium severityValid

CoverageNo articles yet

No CyberSIXT article names CVE-2023-46218 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.