CVE-2026-79776
rclone before 1.75.0 Authentication Bypass via pprof
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
rclone before 1.75.0 Authentication Bypass via pprof
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
CVE-2026-79776- CVSS 4.0
- 6.9 Medium
CVSS: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 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2026-65534
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
EUVD-2026-65534- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q353-w8p3-4cjq
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail...
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
GHSA-q353-w8p3-4cjq- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
NVD
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
CVE-2026-79776- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
rclone before 1.75.0 Authentication Bypass via pprof
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
CVE-2026-79776- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-79776
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
DEBIAN-CVE-2026-79776- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-79776
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
UBUNTU-CVE-2026-79776- CVSS 4.0
- 6.9 Medium
CVSS: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 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVBIT-rclone-2026-79776 No score
rclone before 1.75.0 Authentication Bypass via pprof
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
- Record
BIT-rclone-2026-79776- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
rcloneBitnami |
before 1.75.0 | 1.75.0 |
rcloneDebian:12 |
All versions, plus listed versions 1.60.1+dfsg-21.60.1+dfsg-31.60.1+dfsg-41.65.0+dfsg-11.65.0+dfsg-21.69.3+dfsg-11.69.3+dfsg-21.69.3+dfsg-3 |
None known |
rcloneDebian:13 |
All versions, plus listed versions 1.60.1+dfsg-41.65.0+dfsg-11.65.0+dfsg-21.69.3+dfsg-11.69.3+dfsg-21.69.3+dfsg-3 |
None known |
rcloneUbuntu:18.04:LTS |
All versions, plus listed versions 1.36-31.36-3ubuntu0.11.36-3ubuntu0.2 |
None known |
rcloneUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.47.0+ex1-61.47.0+ex1-71.49.5-21.49.5-31.50.2-21.50.2-2ubuntu0.11.50.2-2ubuntu0.21.50.2-2ubuntu0.2+esm1 |
None known |
rcloneUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 1.53.3-11.53.3-21.53.3-41.53.3-4ubuntu11.53.3-4ubuntu1.22.04.1 Show 7 moreShow less1.53.3-4ubuntu1.22.04.21.53.3-4ubuntu1.22.04.31.53.3-4ubuntu1.22.04.3+esm11.53.3-4ubuntu1.22.04.41.53.3-4ubuntu1.22.04.4+esm11.53.3-4ubuntu1.22.04.51.53.3-4ubuntu1.22.04.5+esm1 |
None known |
rcloneUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 1.60.1+dfsg-2build11.60.1+dfsg-31.60.1+dfsg-3ubuntu0.24.04.11.60.1+dfsg-3ubuntu0.24.04.21.60.1+dfsg-3ubuntu0.24.04.3 Show 6 moreShow less1.60.1+dfsg-3ubuntu0.24.04.41.60.1+dfsg-3ubuntu0.24.04.4+esm11.60.1+dfsg-3ubuntu0.24.04.51.60.1+dfsg-3ubuntu0.24.04.5+esm11.60.1+dfsg-3ubuntu0.24.04.61.60.1+dfsg-3ubuntu0.24.04.6+esm1 |
None known |
rcloneUbuntu:26.10 |
All versions, plus listed versions 1.60.1+dfsg-4ubuntu31.69.3+dfsg-31.69.3+dfsg-3ubuntu1 |
None known |
rcloneUbuntu:Pro:26.04:LTS |
All versions, plus listed versions 1.60.1+dfsg-4ubuntu21.60.1+dfsg-4ubuntu31.60.1+dfsg-4ubuntu3.11.60.1+dfsg-4ubuntu3.1+esm11.60.1+dfsg-4ubuntu3.21.60.1+dfsg-4ubuntu3.2+esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-79776 is a medium vulnerability (CVSS 6.9) in Rclone, published August 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. Fixed in rclone 1.75.0.
References
github.com/rclone/rclone/security/advisories/GHSA-mfvx-7rcj-9m5g
vulncheck.com/advisories/rclone-before-authentication-bypass-via-pprof
nvd.nist.gov/vuln/detail/CVE-2026-79776
security-tracker.debian.org/tracker/CVE-2026-79776
ubuntu.com/security/CVE-2026-79776
cve.org/CVERecord?id=CVE-2026-79776