How severe is CVE-2026-31048?

CVE-2026-31048 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-31048 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-31048?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-31048 have an EU (EUVD) identifier?

Yes. CVE-2026-31048 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22059.

When was CVE-2026-31048 published?

CVE-2026-31048 was published on 2026-04-13 and last updated on 2026-06-17.

CVE-2026-31048

CVE-2026-31048 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22059
Weakness: CWE-94
Published: 2026-04-13
Last modified: 2026-06-17

Description

An issue in the <code>pickle</code> protocol of Pyro v3.x allows attackers to execute arbitrary code via supplying a crafted pickled string message.

Frequently asked questions

What is CVE-2026-31048?: An issue in the <code>pickle</code> protocol of Pyro v3.x allows attackers to execute arbitrary code via supplying a crafted pickled string message.
How severe is CVE-2026-31048?: CVE-2026-31048 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-31048 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-31048?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-31048 have an EU (EUVD) identifier?: Yes. CVE-2026-31048 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22059.
When was CVE-2026-31048 published?: CVE-2026-31048 was published on 2026-04-13 and last updated on 2026-06-17.

References

Other CWE-94 (Code Injection) vulnerabilities

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CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

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