CVE-2026-53874

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-17. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

picklescan before 1.0.1 contains an unsafe deserialization vulnerability allowing unauthenticated users to execute arbitrary code by hiding eval calls nested under callable objects via getattr. Attackers can embed malicious code in pickle files that evades detection but executes when the pickle is loaded from untrusted sources.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
40.6%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 23, 2026

Advisory Details (2)

Auto-updated Jul 12, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Missing detection by simple obfuscation of a `builtins.eval` call · Advisory · mmaitre314/picklescan · GitHub

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9m3x-qqw2-h32h
generic

picklescan - Arbitrary Code Execution via Obfuscated eval Call | Advisories | VulnCheck

https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-obfuscated-eval-call

Vendor Advisories for CVE-2026-53874(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
picklescan0.0.1 ... 1.0.0 (36 versions)1.0.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 52× in last 7d / 215× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 215 total refreshes for this CVE.

  1. 2026-07-15 21:19 UTCEG score recompute
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Frequently asked(5)

What is CVE-2026-53874?
CVE-2026-53874 is a critical vulnerability published on June 17, 2026. picklescan before 1.0.1 contains an unsafe deserialization vulnerability allowing unauthenticated users to execute arbitrary code by hiding eval calls nested under callable objects via getattr. Attackers can embed malicious code in pickle files that evades detection but executes when the pickle is…
When was CVE-2026-53874 disclosed?
CVE-2026-53874 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53874 actively exploited?
CVE-2026-53874 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53874?
CVE-2026-53874 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-53874?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53874, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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