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CVE-2020-11052

Improper Restriction of Excessive Authentication Attempts in Sorcery

8.3 HighFix available

In Sorcery before 0.15.0, there is a brute force vulnerability when using password authentication via Sorcery. The brute force protection submodule will prevent a brute force attack for the defined lockout period, but once expired, protection will not be re-enabled until a user or malicious actor logs in successfully. This does not affect users that do not use the built-in brute force protection submodule, nor users that use permanent account lockout. This has been patched in 0.15.0.

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
Low
Availability
Low

Exploit likelihood

1.60%Up 0.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 8.3

Improper Restriction of Excessive Authentication Attempts in Sorcery

In Sorcery before 0.15.0, there is a brute force vulnerability when using password authentication via Sorcery. The brute force protection submodule will prevent a brute force attack for the defined lockout period, but once expired, protection will not be re-enabled until a user or malicious actor logs in successfully. This does not affect users that do not use the built-in brute force protection submodule, nor users that use permanent account lockout. This has been patched in 0.15.0.

Record
CVE-2020-11052
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-307
Updated
2026-11-02
EUVDEUVD-2020-0428 8.3

In Sorcery before 0.15.0, there is a brute force vulnerability when using password authentication via Sorcery. The brute force protection submodule will prevent a brute force attack for the defined lockout period, but once expired, protection will not be re-enabled until a user or malicious actor logs in successfully. This does not affect users that do not use the built-in brute force protection submodule, nor users that use permanent account lockout. This has been patched in 0.15.0.

Record
EUVD-2020-0428
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-03
GitHub AdvisoriesGHSA-jc8m-cxhj-668x 8.3

Improper Restriction of Excessive Authentication Attempts in Sorcery

Impact

Brute force vulnerability when using password authentication via Sorcery. The brute force protection submodule will prevent a brute force attack for the defined lockout period, but once expired protection will not be re-enabled until a user or malicious actor logs in successfully. This does not affect users that do not use the built-in brute force protection submodule, nor users that use permanent account lockout.

Patches

Patched as of version 0.15.0.

Workarounds

Currently no workarounds, other than monkey patching the authenticate method provided by Sorcery or upgrading to version 0.15.0.

Record
GHSA-jc8m-cxhj-668x
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-307
Updated
2026-11-02
NVD 8.3

In Sorcery before 0.15.0, there is a brute force vulnerability when using password authentication via Sorcery. The brute force protection submodule will prevent a brute force attack for the defined lockout period, but once expired, protection will not be re-enabled until a user or malicious actor logs in successfully. This does not affect users that do not use the built-in brute force protection submodule, nor users that use permanent account lockout. This has been patched in 0.15.0.

Record
CVE-2020-11052
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-307
Updated
2026-11-02
OSV 9.8

In Sorcery before 0.15.0, there is a brute force vulnerability when using password authentication via Sorcery. The brute force protection submodule will prevent a brute force attack for the defined lockout period, but once expired, protection will not be re-enabled until a user or malicious actor logs in successfully. This does not affect users that do not use the built-in brute force protection submodule, nor users that use permanent account lockout. This has been patched in 0.15.0.

Record
CVE-2020-11052
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-jc8m-cxhj-668x 8.3

Improper Restriction of Excessive Authentication Attempts in Sorcery

Impact

Brute force vulnerability when using password authentication via Sorcery. The brute force protection submodule will prevent a brute force attack for the defined lockout period, but once expired protection will not be re-enabled until a user or malicious actor logs in successfully. This does not affect users that do not use the built-in brute force protection submodule, nor users that use permanent account lockout.

Patches

Patched as of version 0.15.0.

Workarounds

Currently no workarounds, other than monkey patching the authenticate method provided by Sorcery or upgrading to version 0.15.0.

Record
GHSA-jc8m-cxhj-668x
CVSS 3.1
8.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-307
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
sorcery
RubyGems
before 0.15.0
0.15.0
sorcery
RubyGems
before 0.15.0, plus listed versions
0.1.00.1.10.1.20.1.30.1.4
Show 45 moreShow less
0.10.00.10.10.10.20.10.30.11.00.12.00.13.00.14.00.2.00.2.10.3.00.3.10.4.00.4.10.4.20.5.00.5.10.5.20.5.210.5.30.5.300.6.00.6.10.7.00.7.10.7.100.7.110.7.120.7.130.7.20.7.30.7.40.7.50.7.60.7.70.7.80.7.90.8.00.8.10.8.20.8.40.8.50.8.60.9.00.9.1
0.15.0

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-11052 is a high vulnerability (CVSS 8.3) in Sorcery, published May 7, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 75th percentile. Fixed in sorcery 0.15.0.

References

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