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CVE-2026-25679VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.0.10

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-25679· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade Red Hat url to 1.26.1 or 1.25.8 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 55% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.26.1, 1.25.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 30 Oct 2026.

What to do

Upgrade net/url to 1.26.1 or 1.25.8.

Affected software

ProductAffectedFixed in
Go standard librarynet/urlAffected
  • >=1.26.0-0 <1.26.1
Fixed in
  • 1.26.1
Go standard librarynet/urlAffected
  • <1.25.8
Fixed in
  • 1.25.8
Gonet/urlpkg:golang/net/urlOther threatsAffected
  • =1.26.0-0
Fixed in–
Gonet/urlpkg:golang/net/urlOther threatsAffected
  • <1.25.8
  • >=1.26.0-0 <1.26.1
Fixed in
  • 1.25.8
  • 1.26.1

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 a fixed version in Red Hat OpenShift Service Mesh 3.0.10. Users should upgrade to this version to remediate the vulnerability. No effective mitigations other than applying the official update are available or meet Red Hat's criteria for ease of use and applicability. Customers are advised to consult Red Hat's advisory and documentation for upgrade instructions.

Description

Red Hat OpenShift Service Mesh 3.0.10, which is based on the open source Istio project, addresses a variety of problems in a microservice architecture by creating a centralized point of control in an application. Fixes/Improvements: Security Fix(es): * istio-rhel9-operator: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) * istio-cni-rhel9: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) * istio-pilot-rhel9: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) * istio-proxyv2-rhel9: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) * istio-proxyv2-rhel9: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation (CVE-2026-33186) * istio-proxyv2-rhel9: BuildKit: Arbitrary file write and code execution via untrusted frontend (CVE-2026-33747) * istio-proxyv2-rhel9: BuildKit: Unauthorized file access via Git URL fragment subdir components (CVE-2026-33748)

References

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