CVE-2025-31205VulnerabilityPublished 4 Jun 2025Updated 27 Jun 2026

Red Hat Security Advisory: webkit2gtk3 security update

Affects Red HatSource GCVE Database

Mentioned vulnerabilities

CVE-2025-31257

Not known to be exploited.

Data as of 25 Oct 2026, 19:02 UTC

Severity

High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 2026-10-25.

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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC 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

AI-suggested

Red Hat has released updated webkit2gtk3 packages (version 2.48.2-1.el9_0) for Red Hat Enterprise Linux 9.0 on multiple architectures to address these vulnerabilities. Users should apply this security update after ensuring all previously released errata relevant to their system have been applied. Detailed update instructions are available from Red Hat's official documentation. No additional mitigations are specified or required beyond applying the official update.

Description

Two security vulnerabilities have been identified in WebKitGTK, the GTK port of the WebKit rendering engine. The first vulnerability (CVE-2025-31205) allows a malicious website to exfiltrate data across origins. The second vulnerability (CVE-2025-31257) can cause an unexpected crash in Safari when processing maliciously crafted web content. Red Hat has issued a security advisory (RHSA-2025:8533) addressing these issues with updated packages for Red Hat Enterprise Linux 9.0 on multiple architectures. The update is rated as Important by Red Hat Product Security. Users are advised to apply the provided updates to remediate these vulnerabilities.

Impact

Successful exploitation of CVE-2025-31205 could allow a malicious website to exfiltrate data across origins, potentially leading to unauthorized data disclosure. CVE-2025-31257 could cause an unexpected crash of Safari when processing malicious web content, potentially leading to denial of service. The advisory does not report any known active exploitation. The impact is rated as Important by Red Hat, indicating a significant security concern but not critical.

Summary

WebKitGTK, the WebKit port for GTK platforms, contains two vulnerabilities: CVE-2025-31205, which permits cross-origin data exfiltration by malicious websites, and CVE-2025-31257, which may cause Safari to crash unexpectedly when processing crafted web content. Red Hat's security advisory RHSA-2025:8533 provides updated webkit2gtk3 packages for Red Hat Enterprise Linux 9.0 across several architectures (ppc64le, x86_64, aarch64, s390x) to address these issues. The advisory classifies the security impact as Important and recommends applying the update after ensuring all prior errata are applied. No CVSS scores are provided in the advisory. No known exploits in the wild have been reported at this time.

CWE-200Exposure of Sensitive Information to an Unauthorized Actor (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #20OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design · Separation of Privilege
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
OWASP Cheat Sheets
Error Handling (opens in a new tab)
Logging (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.4 (opens in a new tab)
V14.3.3 (opens in a new tab)
V7.3.3 (opens in a new tab)
Attack patterns
Subverting Environment Variable Values (opens in a new tab)
ICMP Echo Request Ping (opens in a new tab)
TCP SYN Scan (opens in a new tab)
Enumerate Mail Exchange (MX) Records (opens in a new tab)
DNS Zone Transfers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-416Use After Free (opens in a new tab)
Variant weaknessLikelihood of exploit: HighCWE Top 25 (2025): #7
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Architecture and Design · Language Selection
Choose a language that provides automatic memory management.
Implementation · Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 27 Jun 2026, 22:31 UTC

WeaknessesCWE-200, CWE-416

Technical details

References

Community reviews

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