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Vulnerabilities

Vulnerability · CVE-2026-42601

ArchiveBox is an open source self-hosted web archiving system.

Published May 9, 2026 · catalog updated Jul 24, 2026 · ArchiveBox is an open

Check if you run it

No confirmed exploitation is on record for CVE-2026-42601. EPSS is 0.60%. Act only if a listed version of ArchiveBox is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (ArchiveBox is an open).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.60%
Remediation
Advisory link
Affected products
cpe archivebox/archivebox

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe archivebox/archivebox0.8.6

How to fix CVE-2026-42601

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-42601. EPSS is 0.60%. Act only if a listed version of ArchiveBox is an open is installed.

Which versions are affected?

Compare what you have installed with 0.8.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-88. EPSS 0.60%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 9, 2026 · NIST NVD

    Detected

    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

  2. Jul 24, 2026 · NIST NVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2026-42601

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-42601

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-42601

    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 whe

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.