CVE-2026-9153: gnu sed Path Traversal
CVSS: 6.5v3.1MediumAnalyzed
Published 25-06-2026Last modified 25-06-2026
Vulnerability summary
CVE-2026-9153 is a medium (CVSS 6.5) Path Traversal vulnerability in gnu sed. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 38.2% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.45%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 25-06-2026PublishedVulnerability first disclosed.
- 25-06-2026Last modifiedVulnerability information updated.
Description
Arbitrary File Read vulnerability in Rapid7 InsightConnect Sed Plugin on Linux allows authenticated attackers to read arbitrary files via the expression parameter due to insufficient input validation.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
0.00 pp
From 0.45% on 21-09-2026
21-09-202621-10-2026
EPSS score0.45%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected systems
Gnu1 product
- sed4.2.2
Rapid71 product
- insightconnect sed plugin< 2.0.5
2 vendors · 2 products
References
1 links- extensions.rapid7.com/extension/sedVendor Advisory