7.5

CVE-2021-26296: Cross-Site Request Forgery (CSRF) vulnerability in Apache MyFaces

Modified
AliasesGHSA-gq67-pp9w-43gp
Published 19-02-2021Last modified 13-02-2025

Vulnerability summary

CVE-2021-26296 is a high (CVSS 7.5) Cross-Site Request Forgery vulnerability in apache software foundation apache myfaces core. EPSS estimates a 2.89% chance of exploitation in the next 30 days, higher than 86.9% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.89%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Timeline

  1. 19-02-2021
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

In the default configuration, Apache MyFaces Core versions 2.2.0 to 2.2.13, 2.3.0 to 2.3.7, 2.3-next-M1 to 2.3-next-M4, and 3.0.0-RC1 use cryptographically weak implicit and explicit cross-site request forgery (CSRF) tokens. Due to that limitation, it is possible (although difficult) for an attacker to calculate a future CSRF token value and to use that value to trick a user into executing unwanted actions on an application.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.89%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.89% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Apache1 product
  • myfaces≥ 2.2.0, ≤ 2.2.13 | ≥ 2.3.0, ≤ 2.3.7 | 2.3:next-m1 | 2.3:next-m2 | 2.3:next-m3 | 2.3:next-m4 | 3.0.0:rc1
Apache software foundation1 product
  • apache myfaces core≥ Apache MyFaces Core 2.2, < 2.2.14 | ≥ Apache MyFaces Core 2.3, < 2.3.8 | ≥ Apache MyFaces Core 2.3-next, < 2.3-next-M5 | ≥ Apache MyFaces Core 3.0, < 3.0.0
Netapp1 product
Org.apache.myfaces.core1 product
  • myfaces-core-module< 2.0.25 | ≥ 2.1.0, < 2.1.19 | ≥ 2.2.0, < 2.2.14 | ≥ 2.3.0, < 2.3.8

4 vendors · 4 products

References

8 links