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  4. CVE 2026 77375 sftpgo denial of service via malformed ssh
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Back to active CVEs
Medium · CVSS 6.5CVE-2026-77375

SFTPGo: Denial of service via malformed SSH channel requestCVE-2026-77375

Answer in brief

CVE-2026-77375 records a Medium severity (CVSS 6.5) vulnerability in SFTPGo: Denial of service via malformed SSH channel request. The current sources do not mark it as known exploited. The current feed maps drakkan/sftpgo (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 13, 2026Updated Oct 13, 2026Source checked Oct 13, 2026First seen by HOL Oct 13, 2026Material review Oct 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps drakkan/sftpgo (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
drakkan/sftpgogeneric<2.7.52.7.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for drakkan/sftpgo.
  2. 2Review the reported fix. Update drakkan/sftpgo to 2.7.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 13, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

SFTPGo is an open source, event-driven file transfer solution. Prior to 2.7.5, an authenticated SSH user can send a malformed protocol message while opening a channel, causing an unhandled error that terminates the server process and affects all connected users until restart. No confidentiality or integrity impact has been identified. This issue is fixed in 2.7.5.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • SFTPGo source-side file-pattern filter bypass during copy operationsSame drakkan/sftpgo package
  • Axios: CIDR-form NO_PROXY entries are ignored, causing proxy exclusion bypass for internal IP rangesSame generic ecosystem
  • Electron: Local race condition in Squirrel.Mac update installation on macOSSame generic ecosystem
  • asteval sandbox escape: arbitrary native memory read/write via numpy ctypes in default asteval InterpreterSame generic ecosystem
  • JupyterLab: Command link trust prompt in JupyterLab can trust a document other than the one clickedSame generic ecosystem
  • Plane: Unauthenticated Workspace Invitation Token LeakageSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-129
Source
CVE List V5
Source checked
Oct 13, 2026
References
3 linked sources
Open source record