In handlePackagePostInstall of InstallPackageHelper.java, there is a possible Enhanced Confirmation Mode (ECM) bypass vulnerability that…
- Exploited
- No known exploitation
- Fix
- Fixed in 16, 16-qpr2, 17
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. Affects Android versions 16, 16-qpr2 and 17 (per the advisory's updated AOSP versions column).
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 14/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Fix
- Fixed in 16, 16-qpr2, 17
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In handlePackagePostInstall of InstallPackageHelper.java, there is a possible Enhanced Confirmation Mode (ECM) bypass vulnerability that allows a sideloaded application to modify the package source during a self-update due to a logic error in the code. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.
What to do
Check whether your setup matches what the bug needs.
Affects Android versions 16, 16-qpr2 and 17 (per the advisory's updated AOSP versions column).Upgrade to a fixed version: 16, 16-qpr2, 17.
Timeline
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- CVE published
- First seen by cve.now1 day
- Record last updated
Affected versions
- Google Android
17, 16-qpr2, 16
Evidence 1
- Link
Corrections
None so far.
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Questions about CVE-2026-58836
What does this mean?
The bug is an Enhanced Confirmation Mode (ECM) bypass in the handlePackagePostInstall function of InstallPackageHelper.java, which lets the protection that ECM provides be circumvented. The advisory's impact statement is not available in the checked facts.Source: source.android.com
Am I affected, and how do I check?
The advisory lists Android versions 16, 16-qpr2 and 17. To check, look up the Android version shown in the device's system settings and compare it with those three versions.Source: source.android.com
What should I do about it?
Install the Android security update for the 16, 16-qpr2 or 17 line that includes the fix. The advisory lists these versions as fixed.Source: source.android.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data