CVE-2026-79776Public exploitNetwork attack vector

Credential disclosure via unauthenticated pprof route

Published Aug 25, 2026 · Updated Aug 25, 2026

Authentication bypass in Rclone rclone before 1.75.0 allows remote attackers to read backend credentials through its RC server. The pprof debug handler is registered as a separate router route, so requests to /debug/pprof/cmdline never reach the main handler's fail-closed authentication rule. Exposure requires a network-reachable RC server and reveals its full process arguments, without reported data modification or service interruption.

CVSS severity6.9
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Rclone rclone before 1.75.0 allows remote attackers to read backend credentials through its RC server. The pprof debug handler is registered as a separate router route, so requests to /debug/pprof/cmdline never reach the main handler's fail-closed authentication rule. Exposure requires a network-reachable RC server and reveals its full process arguments, without reported data modification or service interruption.

The record

CVE
CVE-2026-79776
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Rclone
Product
rclone
Classifications
CWE-200, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.75.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rclone · rcloneversion=0 <1.75.0

Published CVSS scores

5.3VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.9VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552Unsecured Credentials

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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