MEDIUM
CVE-2026-7168
Published: May 13, 2026· Updated: May 14, 2026
5.3
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:15.6th
Official Description
Successfully using libcurl to do a transfer over a specific HTTP proxy
(`proxyA`) with **Digest** authentication and then changing the proxy host to
a second one (`proxyB`) for a second transfer, reusing the same handle, makes
libcurl wrongly pass on the `Proxy-Authorization:` header field meant for
`proxyA`, to `proxyB`.
Technical Analysis
CVE-2026-7168 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
haxx1 product
curl
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (5)
→
https://curl.se/docs/CVE-2026-7168.htmlPatch · Vendor Advisory
→
https://curl.se/docs/CVE-2026-7168.jsonVendor Advisory
→
https://hackerone.com/reports/3697719Exploit · Issue Tracking
→
http://www.openwall.com/lists/oss-security/2026/04/29/14Mailing List · Patch
→
https://hackerone.com/reports/3697719Exploit · Issue Tracking
Quick Facts
CVE IDCVE-2026-7168
CVSS Score5.3 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.05%
Affected1 vendor
PublishedMay 13, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-7168 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.