CVE-2026-28847VulnerabilityPublished 20 Jun 2026Updated 10 Nov 2026

SUSE · Security update for webkit2gtk3

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-28847· High 8.8

Not known to be exploited · CVSS 8.8 High · fixed in SUSE package updates : patch SUSE soon.

Data as of 10 Nov 2026, 20:06 UTC

CVSS 3.1 base score

8.8High

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 26.5, 18.7.9

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Safari and macOS and tvOS and visionOS and watchOS to 26.5; iOS and iPadOS to 26.5 or 18.7.9.

Affected software

Product	Affected	Fixed in
AppleSafari	Affected <26.5	Fixed in 26.5
AppleiOS and iPadOS	Affected <26.5	Fixed in 26.5
AppleiOS and iPadOS	Affected <18.7.9	Fixed in 18.7.9
ApplemacOS	Affected <26.5	Fixed in 26.5
AppletvOS	Affected <26.5	Fixed in 26.5
ApplevisionOS	Affected <26.5	Fixed in 26.5

Description

This update for webkit2gtk3 fixes the following issues Update to version 2.52.4: - CVE-2026-28847: processing maliciously crafted web content may lead to an unexpected process crash or arbitrary code execution due to a heap buffer overflow (bsc#1267506). - CVE-2026-28883: processing maliciously crafted web content may lead to an unexpected process crash due to a use-after- free issue (bsc#1267507). - CVE-2026-28901: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267508). - CVE-2026-28902: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267509). - CVE-2026-28903: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267510). - CVE-2026-28904: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267511). - CVE-2026-28905: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267512). - CVE-2026-28907: processing maliciously crafted web content may prevent Content Security Policy from being enforced due to improper input validation (bsc#1267513). - CVE-2026-28942: processing maliciously crafted web content may lead to an unexpected crash due to use-after-free (bsc#1267514). - CVE-2026-28946: processing maliciously crafted web content may lead to an unexpected crash due to a use-after-free (bsc#1267515). - CVE-2026-28947: rocessing maliciously crafted web content may lead to an unexpected crash due to a use-after-free (bsc#1267516). - CVE-2026-28953: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267517). - CVE-2026-28955: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267518). - CVE-2026-28958: an app may be able to access sensitive user data due to improper data protection (bsc#1267519). - CVE-2026-43658: processing maliciously crafted web content may lead to an unexpected crash due to improper memory handling (bsc#1267520). - CVE-2026-43660: processing maliciously crafted web content may prevent Content Security Policy from being enforced due to issues with logic (bsc#1267521). Changes for webkit2gtk3: + Add support for half-width fonts. + Improve content filter compilation by avoiding file copies. + Improve handling of out of disk space conditions when the NetworkProcess tried to write data in caches. + Improve how the CMake build system checks whether libatomic is required. + Fix painting scrollbars when their width changes. + Fix playback of certain YouTube videos with low frame rates. + Fix webkit://gpu not working in systems where neither libGL.so.1 nor libOpenGL.so.0 are available. + Fix the build with librice 0.4 or newer when the GStreamer WebRTC backend is enabled at build configuration time. + Fix the build with USE_GSTREAMER_WEBRTC=OFF. + Fix the build with USE_GBM=OFF. + Fix several crashes and rendering issues. + Security fixes: CVE-2026-28847, CVE-2026-28883, CVE-2026-28901, CVE-2026-28902, CVE-2026-28903, CVE-2026-28904, CVE-2026-28905, CVE-2026-28907, CVE-2026-28942, CVE-2026-28946, CVE-2026-28947, CVE-2026-28953, CVE-2026-28955, CVE-2026-28958, CVE-2026-43658, CVe-2026-43660. + Changes in version .52.3; + Add support for the "scrollbar-color" CSS property. + Fix some emoji glyphs being rendered as missing glyph boxes. + Fix JavaScriptCore crashes on architectures other than x86_64. + Fix the build on s390x. + Changes in version 2.52.2: + Improve handling of real-time threads. + Fix scrollbar rendering glitches visible in some GPU configurations. + Fix V4L2 hardware accelerated media codecs now working due to overly restrictive sandbox device access rules. + Fix leak of bitmap images in webkit_favicon_database_get_favicon_finish(). + Fix the build with USE_GTK4=OFF.

GCVE source: db.gcve.eu
Csaf Category: csaf_security_advisory
Csaf Version: 2.0
Publisher: SUSE Product Security Team
Advisory ID: openSUSE-SU-2026:21129-1
Vendor Severity: high
CVE Count: 16
Additional Cves: CVE-2026-28883, CVE-2026-28901, CVE-2026-28902, CVE-2026-28903, CVE-2026-28904, CVE-2026-28905, CVE-2026-28907, CVE-2026-28942, CVE-2026-28946, CVE-2026-28947, CVE-2026-28953, CVE-2026-28955, CVE-2026-28958, CVE-2026-43658, CVE-2026-43660

References

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