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01 Record

CVE-2026-79152

Incorrect authorization in CustomTabs in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker to bypass web origin policy via a co-installed app. (Chromium security severity:

CriticalPUBLISHEDCNA: Chrome
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

Incorrect authorization in CustomTabs in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker to bypass web origin policy via a co-installed app. (Chromium security severity:

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.32% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 24.8% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-08-27.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-08-25 20:10Z2 MO AGO
Last updated
2026-08-26 19:06Z2 MO AGO
Reserved
2026-08-25
Assigning CNA
Chrome
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-863Incorrect AuthorizationClass
Data version
5.2
Document digest
8a694965e56739d8bc47195c042125b8f3c3158ba1c917e519b50aa2b405fb3d

05 Affected products

VendorProductVersionsPlatforms
GoogleChrome152.0.7977.65 to < 152.0.7977.65—

06 References

07 Fixed in

Debian 12

  • chromium
    Fixed in 152.0.7977.75-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • chromium
    Fixed in 152.0.7977.75-1~deb13u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • chromium
    Fixed in 152.0.7977.64-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.