CVE-2025-31205VulnerabilityPublished 20 May 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 20 May 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

Affected software

Product	Affected	Fixed in
Red Hatredhat/webkit2gtk3`pkg:rpm/redhat/webkit2gtk3`Other threats	Affected =2.48.2-1.el8_10	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an official security update for webkit2gtk3 (version 2.48.2-1.el8_10) that addresses these vulnerabilities. Users of affected Red Hat Enterprise Linux 8 systems should apply this update promptly following Red Hat's published guidance at https://access.redhat.com/articles/11258. No additional mitigations are indicated or required beyond applying the official patch.

Description

Red Hat has issued a security advisory for webkit2gtk3 addressing two vulnerabilities in WebKitGTK, the WebKit port for the GTK platform. The first vulnerability (CVE-2025-31205) allows a malicious website to exfiltrate data cross-origin. The second (CVE-2025-31257) can cause an unexpected Safari crash when processing maliciously crafted web content. These issues affect Red Hat Enterprise Linux 8 across multiple architectures. An update to webkit2gtk3 version 2.48.2-1.el8_10 resolves these vulnerabilities.

Impact

Successful exploitation of CVE-2025-31205 could lead to unauthorized data exfiltration across origins, potentially compromising user data confidentiality. CVE-2025-31257 may cause denial of service through unexpected browser crashes. Both vulnerabilities affect the web rendering engine component, impacting applications relying on WebKitGTK. No known exploits in the wild have been reported at this time.

Summary

This advisory covers two security flaws in WebKitGTK used in Red Hat Enterprise Linux 8. CVE-2025-31205 is a cross-origin data exfiltration vulnerability that could allow malicious websites to access data from other origins improperly. CVE-2025-31257 involves a use-after-free or similar memory handling issue that may cause Safari to crash when processing crafted web content. Red Hat has released patched packages (webkit2gtk3-2.48.2-1.el8_10) for multiple architectures to address these issues. The advisory rates the impact as Important and provides instructions for applying the update.

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

Affected software

Description

AI analysisMachine-generated, updated 27 Jun 2026, 22:35 UTC

WeaknessesCWE-200, CWE-416

Technical details

References

Community reviews

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