CVE-2026-42601 json
ArchiveBox Vulnerable to RCE via unvalidated per-crawl config overrides in AddView
published 2026-05-04 6 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-28935 , GHSA-3h23-7824-pj8r , PYSEC-2026-283
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
ArchiveBox is an open source self-hosted web archiving system. In versions 0.8.6rc0 and prior, 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. At time of publication, there are no publicly available patches.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | 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 |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.3 | 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/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 |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | archivebox | <=0.8.6rc0 |
no fix listed |
Affected products
- ArchiveBox ArchiveBox
Classification
- Weakness
-
- CWE-88 Improper Neutralization of Argument Delimiters in a Command
References
-
github.com
/ArchiveBox/ArchiveBox/security/advisories/GHSA-3h23-7824-pj8r
exploit, web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-42601
advisory
-
github.com
/ArchiveBox/ArchiveBox
package
-
github.com
/pypa/advisory-database/tree/main/vulns/archivebox/PYSEC-2026-283.yaml
web
-
pypi.org
/project/archivebox
web, package
-
github.com
/advisories/GHSA-3h23-7824-pj8r
advisory
Sources
- CVE List CVE-2026-42601
- GitHub Advisory GHSA-3h23-7824-pj8r
- NVD CVE-2026-42601
- OSV PYSEC-2026-283
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.