Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, both ctypes and pydoc modules aren't explicitly blocked. Even other existing pickle scanning tools (like picklescan) do not block pydoc.locate. Chaining these two together can achieve RCE while the scanner still reports the file as LIKELY_SAFE. This issue has been patched in version 0.1.7.
CVE-2026-22608
This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(medium)
- EG Risk
- —
- EPSS
- 27.1%
- KEV
- Not listed
Published
January 10, 2026
Last Modified
January 16, 2026
References (4)
- security-advisories@githubhttps://github.com/trailofbits/fickling/commit/b793563e60a5e039c5837b09d7f4f6b92e6040d1
- security-advisories@githubhttps://github.com/trailofbits/fickling/releases/tag/v0.1.7
- security-advisories@githubhttps://github.com/trailofbits/fickling/security/advisories/GHSA-5hvc-6wx8-mvv4
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/trailofbits/fickling/security/advisories/GHSA-5hvc-6wx8-mvv4
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| fickling | 0.0.1 ... 0.1.6 (13 versions) | 0.1.7 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 50× 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.
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-07-07 13:46 UTCEPSS rescore
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- 2026-05-29 16:21 UTCEG score recompute
- 2026-05-29 13:44 UTCEPSS rescore
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Related CVEs(same CWE)
Same CWE
10 shownCWE-502
- CVE-2017-20208EG 9.8CRITICAL
- CVE-2017-20207EG 9.8CRITICAL
- CVE-2017-20206EG 9.8CRITICAL
- CVE-2017-20189EG 9.8CRITICAL
- CVE-2017-10992EG 9.8EPSS 95%CRITICAL
- CVE-2013-4521EG 9.8EPSS 90%CRITICAL
- CVE-2014-1860EG 9.8CRITICAL
- CVE-2016-1000027EG 9.8EPSS 98%CRITICAL
- CVE-2014-3699EG 9.8CRITICAL
- CVE-2017-18605EG 9.8CRITICAL
Frequently asked(5)
What is CVE-2026-22608?
When was CVE-2026-22608 disclosed?
Is CVE-2026-22608 actively exploited?
What is the CVSS score of CVE-2026-22608?
How do I remediate CVE-2026-22608?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-22608
Is Your Infrastructure Affected by CVE-2026-22608?
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