Is CVE-2022-31781 in the CISA KEV catalog?

No. CVE-2022-31781 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-31781?

CVE-2022-31781 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-31781?

CVE-2022-31781 has an EPSS score of 1.73% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-31781?

Upgrade tapestry to 5.8.2 or later.

CVE & CISA-KEV Catalog

CVE-2022-31781

HIGHEPSS 75th pctl

7.5

CVSS v3

NVD

Description

Apache Tapestry up to version 5.8.1 is vulnerable to Regular Expression Denial of Service (ReDoS) in the way it handles Content Types. Specially crafted Content Types may cause catastrophic backtracking, taking exponential time to complete. Specifically, this is about the regular expression used on the parameter of the org.apache.tapestry5.http.ContentType class. Apache Tapestry 5.8.2 has a fix for this vulnerability. Notice the vulnerability cannot be triggered by web requests in Tapestry code alone. It would only happen if there's some non-Tapestry codepath passing some outside input to the ContentType class constructor.

CWE-1333

How to fix

Remediation Available

tapestryNVD

Affected:< 5.8.2Fixed in:5.8.2CVE-2022-31781derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.73%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Vendor Advisory1

openwall.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.