CVE-2026-49158

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 63.1% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-24.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-07-27 11:05Z3 MO AGO

Last updated

2026-07-27 13:04Z3 MO AGO

Reserved

2026-05-27

Assigning CNA

apache

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-409Improper Handling of Highly Compressed Data (Data Amplification)Base

Data version

5.2

Document digest

2246074a2f7d01db698cb6f3de60d3c68e82ec0c943b83b59c4dded82abc03a7

• lists.apache.orghttps://lists.apache.org/thread/7v3jhgwfbmhx42424phydlnzb109g8b9vendor-advisory
• lists.apache.orghttps://lists.apache.org/thread/fmjl8l415tj9zwlob8v2dr5hq1d0hts7vendor-advisory
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/07/24/38