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CVE-2026-5858EXPLOITEDPATCHED
google · google chrome

CVE-2026-5858: Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary cod

Description

A vulnerability, which was classified as critical, has been found in Google Chrome. Affected by this vulnerability is an unknown functionality of the component WebML. This manipulation causes heap-based buffer overflow. Remote exploitation of the attack is possible.

Affected Products

VendorProductVersions
googlegoogle chrome147.0.7727.55, 146.0.7680.178, 147.0.7727.49

References

  • https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
  • https://issues.chromium.org/issues/493319454

Related News (2 articles)

Tier D
Heise Security4h ago
Google Chrome 147: Update stopft 60 Sicherheitslücken, davon zwei kritische
→ No new info (linked only)
Tier C
VulDB9h ago
CVE-2026-5858 | Google Chrome up to 146.0.7680.178 WebML heap-based overflow (ID 493319)
→ No new info (linked only)
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
147.0.7727.55
CWECWE-122
PublishedApr 8, 2026
Last enriched4h agov3
Tags
security updatebug bounty
Trending Score60
Source articles2
Independent2
Info Completeness8/14
Missing: cvss, epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

HIGHCVE-2026-5281EXPKEV
CVE-2026-5281: Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the render
Trending: 121
CRITICALCVE-2026-5859EXP
CVE-2026-5859: Integer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to potentially exploit heap
Trending: 60
CRITICALCVE-2026-33810EXP
Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509
Trending: 58
HIGHCVE-2026-32288EXP
Unbounded allocation for old GNU sparse in archive/tar
Trending: 55
HIGHCVE-2026-0049EXP
CVE-2026-0049: In onHeaderDecoded of LocalImageResolver.java, there is a possible persistent denial of service due to resource exhausti
Trending: 54

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 8, 2026
Discovered by ZDM
Apr 8, 2026
Actively Exploited
Apr 8, 2026
Patch Available
Apr 8, 2026
Updated: description, affectedVersions, severity, activelyExploited
Apr 9, 2026
Updated: affectedVersions, tags
Apr 9, 2026

Version History

v3
Last enriched 4h ago
v3Tier D4h ago

Added affected version 147.0.7727.49, marked exploit as available, updated patch version, and added new tags related to the security update.

affectedVersionstags
via Heise Security
v2Tier C9h ago

Updated description with more technical detail, changed severity to CRITICAL, and added new affected version 146.0.7680.178.

descriptionaffectedVersionsseverityactivelyExploited
via VulDB
v112h ago

Initial creation