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Vulnerability details: VCID-6aqh-hsuf-s7g2
Vulnerability ID VCID-6aqh-hsuf-s7g2
Aliases CVE-2023-41050
GHSA-8xv7-89vj-q48c
Summary Exposure of Sensitive Information to an Unauthorized Actor AccessControl provides a general security framework for use in Zope. Python's "format" functionality allows someone controlling the format string to "read" objects accessible (recursively) via attribute access and subscription from accessible objects. Those attribute accesses and subscriptions use Python's full blown `getattr` and `getitem`, not the policy restricted `AccessControl` variants `_getattr_` and `_getitem_`. This can lead to critical information disclosure. `AccessControl` already provides a safe variant for `str.format` and denies access to `string.Formatter`. However, `str.format_map` is still unsafe. Affected are all users who allow untrusted users to create `AccessControl` controlled Python code and execute it. A fix has been introduced in versions 4.4, 5.8 and 6.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00258 https://api.first.org/data/v1/epss?cve=CVE-2023-41050
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-8xv7-89vj-q48c
cvssv3.1 6.8 https://github.com/zopefoundation/AccessControl
generic_textual MODERATE https://github.com/zopefoundation/AccessControl
cvssv3.1 6.8 https://github.com/zopefoundation/AccessControl/commit/6bc32692e0d4b8d5cf64eae3d19de987c7375bc9
generic_textual MODERATE https://github.com/zopefoundation/AccessControl/commit/6bc32692e0d4b8d5cf64eae3d19de987c7375bc9
ssvc Track https://github.com/zopefoundation/AccessControl/commit/6bc32692e0d4b8d5cf64eae3d19de987c7375bc9
cvssv3.1 6.8 https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-8xv7-89vj-q48c
cvssv3.1_qr MODERATE https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-8xv7-89vj-q48c
generic_textual MODERATE https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-8xv7-89vj-q48c
ssvc Track https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-8xv7-89vj-q48c
cvssv3.1 6.8 https://nvd.nist.gov/vuln/detail/CVE-2023-41050
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2023-41050
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-41050
https://github.com/zopefoundation/AccessControl
https://github.com/zopefoundation/AccessControl/commit/6bc32692e0d4b8d5cf64eae3d19de987c7375bc9
CVE-2023-41050 https://nvd.nist.gov/vuln/detail/CVE-2023-41050
GHSA-8xv7-89vj-q48c https://github.com/advisories/GHSA-8xv7-89vj-q48c
GHSA-8xv7-89vj-q48c https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-8xv7-89vj-q48c
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N Found at https://github.com/zopefoundation/AccessControl
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N Found at https://github.com/zopefoundation/AccessControl/commit/6bc32692e0d4b8d5cf64eae3d19de987c7375bc9
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-26T14:47:49Z/ Found at https://github.com/zopefoundation/AccessControl/commit/6bc32692e0d4b8d5cf64eae3d19de987c7375bc9
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N Found at https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-8xv7-89vj-q48c
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-26T14:47:49Z/ Found at https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-8xv7-89vj-q48c
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-41050
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.49376
EPSS Score 0.00258
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T21:01:46.320289+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/zope/CVE-2023-41050.yml 38.6.0