CVE-2026-55391: koxudaxi datamodel-code-generator · Reliance on Reverse DNS Resolution for a Security-Critical Action
Affects koxudaxi datamodel-code-generatorSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 0.63.0 soon.
Data as of 27 Oct 2026, 05:11 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.63.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 28 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade koxudaxi datamodel-code-generator to 0.63.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| koxudaxidatamodel-code-generator | Affected
| Fixed in
|
AI-suggested
Upgrade datamodel-code-generator to version 0.63.0 or later, where this vulnerability is fixed. No other mitigation is indicated in the vendor advisory. Patch status is not explicitly stated but the fix is included in version 0.63.0.
Description
CVE-2026-55391 is a high-severity vulnerability in koxudaxi datamodel-code-generator versions prior to 0.63.0. The tool improperly relies on reverse DNS resolution for security-critical decisions, allowing DNS rebinding attacks to bypass network restrictions and potentially access internal services. This issue is fixed in version 0.63.0.
References
- github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-vx7x-vcc2-c44g (opens in a new tab)
- github.com/koxudaxi/datamodel-code-generator/commit/25c8b7e497419eb20b230fa3318c04f9bebc5a6f (opens in a new tab)
- github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0 (opens in a new tab)
- gist.github.com/thegr1ffyn/c1d54dd6ff2a4c0d7d0dabe00c4985f4 (opens in a new tab)