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Highest advisory severityCritical 3 vendors · 3 advisories

CVE-2026-78660: HTTP response smuggling via malformed HTTP/2 framing headers

Not in the CISA KEV catalog. Critical advisory severity (CVSS 7.5, Red Hat).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

CVE-2026-78660 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
Critical
CVSS base score
7.5 (Red Hat)
Weakness
CWE-444
Fixed releases
  • Red Hat: go-toolset:rhel8-8080020261020152326.6b4b45d8, golang-0:1.26.10-1.el9_8, golang-0:1.26.10-1.el9_6, golang-0:1.26.10-1.el9_4, golang-0:1.26.10-1.el9_2, go-toolset:rhel8-8100020261020054335.a3795dee and 5 more in the advisory
Vendor advisories
3 from NetApp, Red Hat, Veeam
VulniPulse record
Published · Updated

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-78660; bulletin-wide values are not repeated here.

Is CVE-2026-78660 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-78660 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-78660?

Upgrade to a fixed release named by the vendor:

  • Red Hat: go-toolset:rhel8-8080020261020152326.6b4b45d8, golang-0:1.26.10-1.el9_8, golang-0:1.26.10-1.el9_6, golang-0:1.26.10-1.el9_4, golang-0:1.26.10-1.el9_2, go-toolset:rhel8-8100020261020054335.a3795dee

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Alert me about NetApp

Vendor advisory comparison

NetApp

1 advisory
  • Advisory severityCritical9.1

    Critical [CVE-2026-78659 +4] October 2026 Golang.Org/X/Net 0.59.0 Vulnerabilities in NetApp Products

    NTAP-20261106-0006Source published Source updated

    This bulletin covers 5 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

    Golang. Org/X/Net versions through 0.59.0 are susceptible to HTTP/2 vulnerabilities. Successful exploitation of these vulnerabilities could lead to addition or modification of data or Denial of Service (DoS). NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.

    Affected products in this advisory
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    • 0.59.0
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-78660] HTTP response smuggling via malformed HTTP/2 framing headers

    CVE-2026-78660Source published Source updated

    HTTP response smuggling via malformed HTTP/2 framing headers. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-444. Red Hat lists fixing advisory RHSA-2026:90994 with package go-toolset:rhel8-8080020261020152326.6b4b45d8, golang-0:1.26.10-1.el9_8, golang-0:1.26.10-1.el9_6, golang-0:1.26.10-1.el9_4. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 10.

    Related products — impact not confirmed
    • Red Hat Enterprise Linux 9
    • Red Hat Enterprise Linux 10
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • go-toolset:rhel8-8080020261020152326.6b4b45d8
    • golang-0:1.26.10-1.el9_8
    • golang-0:1.26.10-1.el9_6
    • golang-0:1.26.10-1.el9_4

    7 more entries in the full advisory.

    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

Veeam

1 advisory
  • Advisory severityCritical

    Critical [CVE-2020-14040 +110] List of Security Fixes and Improvements in Veeam Kasten for Kubernetes

    KB4825Source published

    This bulletin covers 111 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

    List of Security Fixes and Improvements in Veeam Kasten for Kubernetes KB ID: 4825 Product: Kasten K10 by Veeam | 3 | 5 | 5.5 | 6 | 6.5 Published: 2026-03-02 Last Modified: Purpose This article aims to provide our customers' security and compliance teams with detailed information on security improvements. - Veeam Kasten for Kubernetes — Release Notes - Also resolves 13 Medium and 7 Low severity CVEs in the same and other packages. - Upgraded the frontend's bundled JavaScript dependencies to resolve GHSA-g2v6-rqmx-r4w6 in @vue/server-renderer (High). - Upgraded to latest UBI base image to resolve multiple CVEs in base OS packages. - Updated the Go runtime to resolve additional upstream Go CVEs. - Updated the bundled Prometheus Helm chart to resolve security issues. - Upgraded the…

    Related products — impact not confirmed
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • 8.5.10
    • 8.5.5
    • 1.26.1
    • 8.5.3

    20 more entries in the full advisory.

    Mitigation guidance
    • List of Security Fixes and Improvements in Veeam Kasten for Kubernetes KB ID: 4825 Product: Veeam Kasten for Kubernetes | 7 | 7.5 | 8 | 8.5 | 9 Kasten K10 by Veeam | 3 | 5 | 5.5 | 6 | 6.5 Published: 2026-03-02 Last Modified: 2026-11-05 Purpose This article describes all security-related fixes and improvements introduced in each release or update of Veeam Kasten for Kubernetes.
    • It is recommended to upgrade Veeam Kasten and to refresh the token by manually logging out.
    • Mitigation: Configure a bucket-level Default Object Lock retention so the object store stamps new objects at write time, or upgrade to Kasten 8.5.10.
    • Veeam Kasten for Kubernetes 8.5.5 Upgrade to Go 1.26.1 to address CVE-2026-25679 and CVE-2026-27142 Updated the UBI base image to address CVE-2026-4111 Veeam Kasten for Kubernetes 8.5.3 Upgrade to Go 1.25.7 to address CVE-2025-61732.

    4 more entries in the full advisory.

    Workarounds
    • Veeam Kasten for Kubernetes 8.0.14 Improved logging security for specific block mode datamover upload Pod invocations.
    Full advisory and evidenceOpen source bulletin

More NetApp advisories

All NetApp advisories

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