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Highest advisory severityMedium 2 vendors · 2 advisories

CVE-2026-54886

Erlang/OTP Vulnerability in NetApp Products

CVE-2026-54886: Erlang/OTP Vulnerability in NetApp Products. Not in the CISA KEV catalog. Medium advisory severity (CVSS 6.5, 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

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CVE-2026-54886 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
Medium
CVSS base score
6.5 (Red Hat), 5.3 (NetApp)
Fixed releases
  • Red Hat: erlang27-main-27.3.4.17-1.hum1, RHSA-2026:63160
Vendor advisories
2 from NetApp, Red Hat
VulniPulse record
Published · Updated

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-54886; bulletin-wide values are not repeated here.

Is CVE-2026-54886 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-54886 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-2026-54886?

Upgrade to a fixed release named by the vendor:

  • Red Hat: erlang27-main-27.3.4.17-1.hum1, RHSA-2026:63160
  • Set the max_channels daemon option to a finite value instead of the default 'infinity' to limit the number of channels an authenticated user can open per connection, reducing the amplification potential of this vulnerability. (Red Hat)

Vendor advisory comparison

NetApp

1 advisory
  • Advisory severityMedium5.3

    Medium [CVE-2026-54886] Erlang/OTP Vulnerability in NetApp Products

    NTAP-20261104-0018Source published Source updated

    Erlang/OTP versions 17 through 27.3.4.13, 28 through 28.5.0.2, and 29 through 29.0.2 are susceptible to a vulnerability which when successfully exploited could allow an authenticated SFTP user to render an SFTP channel permanently unresponsive. Successful exploitation of this vulnerability could lead to 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
    • 27.3.4.13
    • 28.5.0.2
    • 29.0.2
    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 severityMedium6.5

    Medium [CVE-2026-54886] Erlang OTP ssh: Denial of Service via infinite loop in SFTP channel

    CVE-2026-54886Source published Source updated

    Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in Erlang OTP ssh (ssh_sftpd module) allows an authenticated SFTP user to render an SFTP channel permanently unresponsive. The handle_data/4 function in ssh_sftpd contains a catch-all clause that accepts channel data of any type. When channel data with a non-zero type code (SSH_MSG_CHANNEL_EXTENDED_DATA) arrives with an empty pending buffer and a payload at or below the SFTP packet size limit, the clause tail-calls itself with identical arguments, creating an infinite loop. The SFTP protocol operates exclusively on normal channel data (type 0). Extended data (non-zero type) is meaningless for SFTP and is never sent by conforming clients. However, the SSH protocol permits any channel participant to send extended data on…

    Affected products in this advisory
    • Red Hat Hardened Images
    • Red Hat OpenStack Platform 16.2
    • Red Hat OpenStack Platform 17.1
    • Red Hat OpenStack Platform 18.0
    Source-reported affected versions
    • < 17.0
    • < 29.0.3
    • < 28.5.0.3
    • < 27.3.4.14

    4 more entries in the full advisory.

    Source-reported fixed versions
    • erlang27-main-27.3.4.17-1.hum1
    • RHSA-2026:63160
    Mitigation guidance
    • Set the max_channels daemon option to a finite value instead of the default 'infinity' to limit the number of channels an authenticated user can open per connection, reducing the amplification potential of this vulnerability.
    Full advisory and evidenceOpen source bulletin

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