CVE-2026-110240Medium· 4.8▾ TwilightPoC available

Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score38/ 100 · Low

impact 26.4 · likelihood 0.1 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

…

Published

Oct 13, 2026

Updated

Oct 13, 2026

CVSS

4.8

Vendor

duke-git

Product

lancet

CWE

CWE-918

Depth score

38 · Low

EPSS

0.33% · p26

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

decided 2026-10-13

Exploitation: poc
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 15.

0.3% → 0.3%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 2 days

Oct 13, 2026Published
Disclosed via NVD
Oct 15, 2026EPSS first tracked
0.3%
Oct 15, 2026Public exploit observed
Exploit / PoC code exists

duke-git CWE-918 #nvd #cve.org #exploit-available

Affected

lancet >= 2.1.2 <= 2.3.9
lancet >= 1.3.1 <= 1.4.6

Full technical detail▾

Overview

Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external. Attackers can supply hostnames resolving to these address forms, including NAT64, 6to4 or Teredo embedding internal IPv4, to reach internal services or cloud metadata endpoints.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Oct 15, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available

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CVE-2026-110240Medium· 4.8▾ TwilightPoC available

Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score38/ 100 · Low

impact 26.4 · likelihood 0.1 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

…

Published

Oct 13, 2026

Updated

Oct 13, 2026

CVSS

4.8

Vendor

duke-git

Product

lancet

CWE

CWE-918

Depth score

38 · Low

EPSS

0.33% · p26

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

decided 2026-10-13

Exploitation: poc
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 15.

0.3% → 0.3%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 2 days

Oct 13, 2026Published
Disclosed via NVD
Oct 15, 2026EPSS first tracked
0.3%
Oct 15, 2026Public exploit observed
Exploit / PoC code exists

duke-git CWE-918 #nvd #cve.org #exploit-available

Affected

lancet >= 2.1.2 <= 2.3.9
lancet >= 1.3.1 <= 1.4.6

Full technical detail▾

Overview

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Oct 15, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available