Skip to content
Fencer Vulns
high 8.6

CVE-2026-75856 json

CodeWhale before 0.8.64 SSRF Bypass via DNS Pinning TOCTOU

published 2026-08-18 2 mo ago modified 2026-10-22 17 d ago also GHSA-6v2g-fpxh-pmmh , EUVD-2026-60963

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

CodeWhale before 0.8.64 contains a server-side request forgery bypass vulnerability in DNS pinning logic that fails to prevent time-of-check-time-of-use attacks. Attackers can manipulate DNS responses to fail initial resolution checks and succeed on secondary requests, allowing requests to internal IP addresses and bypassing SSRF mitigations.

Patch / fix

  • npm deepseek-tui 0.8.41
  • crates.io codewhale-tui 0.8.64
  • npm codewhale 0.8.64
  • Hmbown CodeWhale 0.8.41, 0.8.64

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Hmbown/CodeWhale/security/advisories/GHSA-6v2g-fpxh-pmmh referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 9.2 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CNA 4.0 9.2 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
GitHub 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
crates.io deepseek-tui
>=0.8.5, <=0.8.41
 no fix listed
npm deepseek-tui
>=0.8.5, <0.8.41
0.8.41
crates.io codewhale-tui
>=0.8.41, <0.8.64
0.8.64
npm codewhale
>=0.8.41, <0.8.64
0.8.64

Affected products

  • Hmbown CodeWhale

Classification

Weakness
  • CWE-918 Server-Side Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.