medium4.3
CVE-2026-100836
Contrast through 1.20.0 contains a panic vulnerability in the transit-engine endpoint's ciphertextContainer.UnmarshalJSON function that fails to validate decod…
Impact
Contrast through 1.20.0 contains a panic vulnerability in the transit-engine endpoint's ciphertextContainer.UnmarshalJSON function that fails to validate decoded ciphertext length before slicing. An authenticated workload with a valid mesh certificate can trigger a runtime panic by submitting a short base64-encoded ciphertext, causing log spam and request failures without crashing the process.
Affected products
| Product | Affected versions |
|---|---|
| Contrast | through 1.20.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-3ccm-4qq2-5wrp
- https://www.vulncheck.com/advisories/edgeless-systems-contrast-through-1.20.0-denial-of-service-via-ciphertextcontainer
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-3ccm-4qq2-5wrp