CVE-2026-64718
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, Safari 27, iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS
02 Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, Safari 27, iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS
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.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 17.7% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-09-14.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
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
- 2026-07-27 20:12Z3 MO AGO
- Last updated
- 2026-10-26 20:33Z2 DAYS AGO
- Reserved
- 2026-07-20
- Assigning CNA
- apple
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.5)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.2
- Document digest
- 6772230d29fd502ff56cc139226cd18d29472cf4e2bfdd91be68a135ab94132f
05 Affected products
06 References
- support.apple.comhttps://support.apple.com/en-us/128066
- support.apple.comhttps://support.apple.com/en-us/128067
- support.apple.comhttps://support.apple.com/en-us/128068
- support.apple.comhttps://support.apple.com/en-us/128069
- support.apple.comhttps://support.apple.com/en-us/128070
- support.apple.comhttps://support.apple.com/en-us/128073
- support.apple.comhttps://support.apple.com/en-us/149034
- support.apple.comhttps://support.apple.com/en-us/149035
- support.apple.comhttps://support.apple.com/en-us/149038
- support.apple.comhttps://support.apple.com/en-us/149039
- support.apple.comhttps://support.apple.com/en-us/149041
07 Fixed in
AlmaLinux 8
- webkit2gtk3 Fixed in 2.54.0-1.el8_10
- webkit2gtk3-devel Fixed in 2.54.0-1.el8_10
- webkit2gtk3-jsc Fixed in 2.54.0-1.el8_10
- webkit2gtk3-jsc-devel Fixed in 2.54.0-1.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- webkit2gtk3 Fixed in 2.54.0-1.el9_8
- webkit2gtk3-devel Fixed in 2.54.0-1.el9_8
- webkit2gtk3-jsc Fixed in 2.54.0-1.el9_8
- webkit2gtk3-jsc-devel Fixed in 2.54.0-1.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- webkit2gtk3 Fixed in 2.54.0-1.el8_10
- webkit2gtk3-devel Fixed in 2.54.0-1.el8_10
- webkit2gtk3-jsc Fixed in 2.54.0-1.el8_10
- webkit2gtk3-jsc-devel Fixed in 2.54.0-1.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- webkit2gtk3 Fixed in 2.54.0-1.el9_8
- webkit2gtk3-devel Fixed in 2.54.0-1.el9_8
- webkit2gtk3-jsc Fixed in 2.54.0-1.el9_8
- webkit2gtk3-jsc-devel Fixed in 2.54.0-1.el9_8
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. 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.