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CVE-2026-116189high7.7

rclone 1.55.0 before 1.75.2 selfupdate Signature Verification Bypass via SHA256SUMS

Impact

rclone versions 1.55.0 before 1.75.2 contain a signature verification bypass, allowing attackers controlling the release distribution path to install a malicious executable. The weakness is due to trusting checksums from unsigned bytes preceding the PGP-clearsigned SHA256SUMS block. Attackers can prepend an unsigned checksum line matching a malicious archive.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

rclone · VulnCheck

rclone

2 ranges
VulnCheck version evidence

Package identity

pkg:golang/github.com/rclone/rcloneExplore github.com/rclone/rclone →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

1.55.0 → before 1.75.2

semver versions

unaffected

1.75.2

semver versions

unknown

Other versions: unaffected

Original source description

rclone from 1.55.0 before 1.75.2 contains a signature verification bypass in stable selfupdate that trusts checksums from unsigned bytes preceding the PGP-clearsigned SHA256SUMS block. Attackers controlling the release distribution path can prepend an unsigned checksum line matching a malicious archive, causing selfupdate to install an attacker-controlled rclone executable.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-116189

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-347 ↗

Improper Verification of Cryptographic Signature

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*

From (inclusive): 1.55.0

Before: 1.75.2

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "1.55.0",
            "versionEndExcluding": "1.75.2"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 2
VulnCheck

Assigning organization

2026-10-25
CISA-ADP

Additional data publisher

2026-10-29

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

2 sources
github.com/rclone/rclone/security/advisories/GHSA-w33h-3qgq-8mv8
vendor-advisoryVulnCheck · CISA-ADP
www.vulncheck.com/advisories/rclone-1.55.0-before-1.75.2-selfupdate-signature-verification-bypass-via-sha256sums
third-party-advisoryVulnCheck