Vulnerability · CVE-2026-113343
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page.
Published Oct 20, 2026 · catalog updated Oct 23, 2026 · Memory corruption in Sandbox
Last checked Oct 25, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-113343. EPSS is 0.43%. Act only if a listed version of Memory corruption in Sandbox is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (Memory corruption in Sandbox).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-113344 · High
- CVE-2026-113342 · Critical
- CVE-2026-113341 · Medium
- CVE-2026-113340 · Medium
- CVE-2026-113339 · High
- Severity
- High8.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.43%
- Remediation
- Version ranges on file
- Affected products
- Debian:12 chromium · Debian:13 chromium · Debian:14 chromium · cpe google/chrome
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- Debian:12 chromium0 → 156.0.8078.47-1~deb12u1
- Debian:13 chromium0 → 156.0.8078.47-1~deb13u1
- Debian:14 chromium138.0.7204.183-1, 139.0.7258.127-1, 139.0.7258.127-1~deb12u1
- cpe google/chrome< 156.0.8078.47
How to fix CVE-2026-113343
Upgrade
CVE-2026-113343 lists a fix boundary at 156.0.8078.47-1~deb12u1. Compare the installed build with that boundary before you change production.
Version check
Affected < 156.0.8078.47
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-113343. EPSS is 0.43%. Act only if a listed version of Memory corruption in Sandbox is installed.
Which versions are affected?
Compare what you have installed with 0 → 156.0.8078.47-1~deb12u1, 0 → 156.0.8078.47-1~deb13u1, 138.0.7204.183-1, 139.0.7258.127-1, 139.0.7258.127-1~deb12u1, < 156.0.8078.47. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-119: Buffer Overflow. EPSS 0.43%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 20, 2026 · NIST NVD
Detected
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Oct 21, 2026 · NIST NVD
Updated
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Oct 21, 2026 · NIST NVD
Updated
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Oct 23, 2026 · OpenSSF OSV / OSV Scanner
Fix available
chromium fixed in 156.0.8078.47-1~deb12u1; chromium fixed in 156.0.8078.47-1~deb13u1
Oct 23, 2026 · OpenSSF OSV / OSV Scanner
Fix available
chromium fixed in 156.0.8078.47-1~deb12u1
Oct 23, 2026 · OpenSSF OSV / OSV Scanner
Fix available
chromium fixed in 156.0.8078.47-1~deb13u1
Oct 23, 2026 · OpenSSF OSV / OSV Scanner
Updated
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Sources
- CVE.orgVulnerability recordCVE-2026-113343
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-113343
30-day exploitation probability 0.43%
first.org - NIST NVDVulnerability recordCVE-2026-113343
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
nvd.nist.gov - OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-113343osv.dev
- Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-113343
Memory corruption in Sandbox in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
osv.dev
References
Freshness
Last verified in this catalog Oct 25, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 25, 2026
- Trivy Vulnerability DBOct 23, 2026
- OpenSSF OSV / OSV ScannerOct 23, 2026
- CVE.orgOct 21, 2026
- NIST NVDOct 21, 2026