CVE-2026-118408: Auth Bypass (CVSS 3.1)

Description

Missing Authorization in Apache Roller 4.0 through 6.1.6 allows any logged-in user to read unpublished entries of a weblog they have no role in. The entry preview checked that the user was logged in, but not that the user had a role in the weblog being previewed. The attacker must know the weblog name and the entry's link name. Users are recommended to upgrade to Apache Roller 6.1.7 or later, which requires a role in the weblog to preview its entries.

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CVSS v3.1 Score

3.1

LOW

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

EPSS — Exploit Prediction

0.0025

Probability of exploitation

0.17%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://github.com/apache/roller/pull/223 https://lists.apache.org/thread/kzm975k5qhdpwztdmbdfwlfwsd6vopw0

Frequently Asked Questions

What is CVE-2026-118408? +

Missing Authorization in Apache Roller 4.0 through 6.1.6 allows any logged-in user to read unpublished entries of a weblog they have no role in. The entry preview checked that the user was logged in, but not that the user had a role in the weblog being previewed. The attacker must know the weblog name and the entry's link name. Users are recommended to upgrade to Apache Roller 6.1.7 or later, which requires a role in the weblog to preview its entries. It has a CVSS v3.1 base score of 3.1 (LOW).

How severe is CVE-2026-118408? +

CVE-2026-118408 has a CVSS v3.1 score of 3.1 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0025, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-118408? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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