How severe is CVE-2019-12422?

CVE-2019-12422 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-12422 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12422?

CVE-2019-12422 affects Apache Shiro. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12422?

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

When was CVE-2019-12422 published?

CVE-2019-12422 was published on 2019-11-18 and last updated on 2026-06-17.

CVE-2019-12422

CVE-2019-12422 is a high-severity vulnerability in Apache Shiro with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Shiro
Published: 2019-11-18
Last modified: 2026-06-17

Description

Apache Shiro before 1.4.2, when using the default "remember me" configuration, cookies could be susceptible to a padding attack.

Frequently asked questions

What is CVE-2019-12422?: Apache Shiro before 1.4.2, when using the default "remember me" configuration, cookies could be susceptible to a padding attack.
How severe is CVE-2019-12422?: CVE-2019-12422 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-12422 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12422?: CVE-2019-12422 affects Apache Shiro. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12422?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-12422 published?: CVE-2019-12422 was published on 2019-11-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Shiro

CVE-2023-34478 — Critical (CVSS 9.8): Apache Shiro, before 1.12.0 or 2.0.0-alpha-3, may be susceptible to a path traversal attack that results in an…
CVE-2022-40664 — Critical (CVSS 9.8): Apache Shiro before 1.10.0, Authentication Bypass Vulnerability in Shiro when forwarding or including via…
CVE-2022-32532 — Critical (CVSS 9.8): Apache Shiro before 1.9.1, A RegexRequestMatcher can be misconfigured to be bypassed on some servlet containers.…
CVE-2021-41303 — Critical (CVSS 9.8): Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an…
CVE-2020-17523 — Critical (CVSS 9.8): Apache Shiro before 1.7.1, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an…
CVE-2020-17510 — Critical (CVSS 9.8): Apache Shiro before 1.7.0, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an…

All CVEs affecting Apache Shiro →