Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-11972

Python Vulnerability in NetApp Products

CVE-2026-11972: Python Vulnerability in NetApp Products. Not in the CISA KEV catalog. High advisory severity (CVSS 8.2, NetApp).

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

Get an email when NetApp publishes the next one.

VulniPulse checks NetApp's security advisories around the clock and emails you new ones with the severity, the fixed version and the vendor's link. First month free, then US$15/month; we email you before the first charge.

Start your free month

CVE-2026-11972 key facts

CISA KEV: Not listed (catalog checked Oct 28, 2026)
Highest advisory severity: High
CVSS base score: 8.2 (NetApp), 6.5 (Red Hat)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (Red Hat)
Weakness: CWE-835
Fixed releases: Red Hat: python3-14-main-3.14.6-1.2.hum1, python3-11-main-3.11.15-4.4.hum1, python3-13-main-3.13.14-1.2.hum1, python3-12-main-3.12.13-3.3.hum1, python3-14-main-3.14.7-1.hum1, python3-13-main-3.13.15-1.hum1 and 6 more in the advisory
Vendor advisories: 2 from NetApp, Red Hat
VulniPulse record: Published Jul 6, 2026 · Updated Sep 14, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-11972; bulletin-wide values are not repeated here.

Is CVE-2026-11972 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-11972 is not in the CISA KEV catalog (checked Oct 28, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-11972?

Upgrade to a fixed release named by the vendor:

Red Hat: python3-14-main-3.14.6-1.2.hum1, python3-11-main-3.11.15-4.4.hum1, python3-13-main-3.13.14-1.2.hum1, python3-12-main-3.12.13-3.3.hum1, python3-14-main-3.14.7-1.hum1, python3-13-main-3.13.15-1.hum1

Avoid using tarfile streaming mode (mode='r|') with untrusted tar archives. Use the standard file-based mode (mode='r') instead where possible. (Red Hat)

Vendor advisory comparison

NetApp

1 advisory

Advisory severityHigh8.2
High [CVE-2026-11972] Python Vulnerability in NetApp Products
NTAP-20260903-0009Source published Sep 3, 2026Source updated Sep 14, 2026
Python versions 2.3 through 3.10.20, 3.11.0a1 through 3.11.15, 3.12.0a1 through 3.12.13, 3.13.0a1 through 3.13.14, 3.14.0a1 through 3.14.6, and 3.15.0a1 through 3.15.0b3 are susceptible to a vulnerability which when successfully exploited could lead to Denial of Service (DoS). Successful exploitation of this vulnerability could lead to Denial of Service (DoS). Affected products: Active IQ Unified Manager for Microsoft Windows, Active IQ Unified Manager for VMware vSphere, Management Services for Element Software and NetApp HCI. 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
Active IQ Unified Manager for Microsoft Windows
Active IQ Unified Manager for VMware vSphere
Management Services for Element Software and NetApp HCI
Source-reported affected versions
3.10.20
3.11
3.11.15
3.12
6 more entries in the full advisory.
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 evidence Open source bulletin

Red Hat

1 advisory

Advisory severityMedium6.5
Medium [CVE-2026-11972] Python tarfile module: Denial of Service via improper EOF handling in streaming mode
CVE-2026-11972Source published Jun 23, 2026Source updated Jun 23, 2026
When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer. This can cause the `tarfile` module to enter an infinite loop, leading to a Denial of Service (DoS) for applications processing such archives. When processing a tar archive in streaming mode (mode='r|'), the _Stream.seek function does not properly check for end-of-file, which can cause an infinite loop when processing a specially crafted archive. Red Hat ships Python as part of many products, and applications using tarfile's streaming mode are potentially affected by this denial of service vulnerability. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). Weakness: CWE-835.…
Affected products in this advisory
Red Hat Hardened Images
Exploit Intelligence
Red Hat AI Inference Server
Red Hat Enterprise Linux 10
12 more entries in the full advisory.
Source-reported affected versions
Affected-version details not available in this record.
Source-reported fixed versions
python3-14-main-3.14.6-1.2.hum1
python3-11-main-3.11.15-4.4.hum1
python3-13-main-3.13.14-1.2.hum1
python3-12-main-3.12.13-3.3.hum1
8 more entries in the full advisory.
Mitigation guidance
Avoid using tarfile streaming mode (mode='r|') with untrusted tar archives. Use the standard file-based mode (mode='r') instead where possible.
Full advisory and evidence Open source bulletin

All NetApp advisories

Follow CVE-2026-11972 in the free weekly digest

Every Monday: whether it was added to CISA KEV, reported exploited, got a fix or changed severity, plus the week's critical and high advisories.

Browse the latest tracked CVEs or the CVEs listed in CISA KEV.

Android app · Google Play

Get alerts for new CVEs on your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features