CVE-2026-55403: koxudaxi datamodel-code-generator · Information Exposure
Affects koxudaxi datamodel-code-generatorSource CVE Database V5
Not known to be exploited · CVSS 3.7 Low : upgrade to 0.63.0 when convenient.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 26% 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:U/C:L/I:N/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 to datamodel-code-generator version 0.63.0 or later, where this vulnerability is fixed. No other mitigation is indicated or required.
Description
datamodel-code-generator generates Python data models from schema definitions. Prior to 0.63.0, src/datamodel_code_generator/http.py get_body reuses Authorization, Cookie, and Proxy-Authorization headers when following cross-origin redirects while fetching remote schemas, allowing credentials scoped to one schema host to be leaked to another redirect target. This issue is fixed in version 0.63.0.
References
- github.com/koxudaxi/datamodel-code-generator/security/advisories/GHSA-r5vv-ff45-prp2 (opens in a new tab)
- github.com/koxudaxi/datamodel-code-generator/commit/a585c037c8307b7aae815de193b7fe1c4c44994b (opens in a new tab)
- github.com/koxudaxi/datamodel-code-generator/releases/tag/0.63.0 (opens in a new tab)