Apple · Auth bypass
Apple Multiple Products Authentication Bypass Vulnerability
At a glance
Actively exploited in the wild — prioritise confirming exposure.
High rather than Critical: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Apple Safari, treat it as Critical.
Briefing
There is no written leader briefing for this story yet. These questions come from the facts we hold.
Questions to ask IT
- Do we run Apple Safari, Webkitgtk and Wpewebkit Wpe Webkit, and which versions?
- Is any of it reachable from the internet?
- Have we checked whether it has already been used against us?
- If it is still not patched, what mitigation is in place, and what is holding the fix up?
Next steps
- Confirm exposure and remediation status for affected products
Vulnerability facts
Full CVE detail CVE-2024-27834- 5.5 · MediumExploitable only with local access and a low-privilege account, and no one has to click or open anything. High impact on integrity.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Listed: attacks using it have been seen (on the catalogue since )
- ~1.5% estimated chance of attack in 30 days
No technical write-up beyond these facts and the summary below yet.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- CISA has added one new vulnerability to its known-exploited catalogue, based on evidence of active exploitation. CVE-2024-27834 Apple Multiple Products Improper Authentication Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.
- CVE-2024-27834 is confirmed as exploited in the wild (US known-exploited catalogue)
- Authoritative catalogues report active exploitation of this vulnerability.
Products and services involved
- Apple Safari93% match confidence · CVE-2024-27834
- Webkitgtk93% match confidence · CVE-2024-27834
- Wpewebkit Wpe Webkit93% match confidence · CVE-2024-27834
Part of Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability
Same event, different frames
Distinct often headline the same incident differently.
Pulse
Last change 3d ago · Recheck overdue since 5 Nov 2026, 23:04 UK time
- Story5 Nov 2026, 00:32 UK time · 4d ago
Linked reporting from CISA (official authority).
Read source (CISA Known Exploited Vulnerabilities) - Update5 Nov 2026, 17:04 UK time · 3d ago
Estimated attack-likelihood score was cleared.
- Story5 Nov 2026, 17:04 UK time · 3d ago
Linked reporting from CISA Cybersecurity Advisories (official authority).
Read source (CISA Cybersecurity Advisories)
3 entries so far. The timeline chart appears once this story has more history.
Sources
Apple Multiple Products Improper Authentication Vulnerability
- CISA Cybersecurity AdvisoriesOfficial
CISA Adds One Known Exploited Vulnerability to Catalog
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ClaimedHeadline60% confidence
Apple Multiple Products Improper Authentication Vulnerability
- ProbableSummary fact75% confidence
CISA has added one new vulnerability to its known-exploited catalogue, based on evidence of active exploitation. CVE-2024-27834 Apple Multiple Products Improper Authentication Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2024-27834
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2024-27834 is confirmed as exploited in the wild (US known-exploited catalogue)

