CVE-2026-28861

medium

Published 2026-03-25 · Modified 2026-05-10

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CVSS v3

4.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

4.3

Description

A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins.

Predictions

Exploit likelihood

53%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.52.3-2~deb13u1`
sid	Fixed	`2.52.1-1`
forky	Fixed	`2.52.1-1`
bullseye	Affected	—
bookworm	Affected	—

macOS Mixed 2 releases

Version	Status	Fixed in
26.4	Fixed	—
—	Affected	`18.7.7`

apple Fixed 1 release

Version	Status	Fixed in
26.4	Fixed	—

ios Fixed 2 releases

Version	Status	Fixed in
26.4	Fixed	—
18.7.7	Fixed	—

safari Fixed 1 release

Version	Status	Fixed in
26.4	Fixed	—

Application impact

Vendor	Product	Versions	Fixed
apple	safari	`{"endExcluding":"26.4"}`	`26.4`

References

CWEs

CWE-79

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.