CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-33128

H3 is a minimal H(TTP) framework. In versions prior to 1.15.6 and between 2.0.0 through 2.0.1-rc.14, createEventStream is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in formatEventStreamMessage() and formatEventStreamComment(). An attacker who controls any part of an SSE message field (id, event, data, or comment) can inject arbitrary SSE events to connected clients. This issue is fixed in versions 1.15.6 and 2.0.1-rc.15.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 11.3%

CVSS Severity

CVSS v3 Score 7.5

References

Products affected by CVE-2026-33128

H3 » H3 » Version: 0.0.1

cpe:2.3:a:h3:h3:0.0.1
H3 » H3 » Version: 0.0.10

cpe:2.3:a:h3:h3:0.0.10
H3 » H3 » Version: 0.0.11

cpe:2.3:a:h3:h3:0.0.11
H3 » H3 » Version: 0.0.12

cpe:2.3:a:h3:h3:0.0.12
H3 » H3 » Version: 0.0.13

cpe:2.3:a:h3:h3:0.0.13
H3 » H3 » Version: 0.0.14

cpe:2.3:a:h3:h3:0.0.14
H3 » H3 » Version: 0.0.15

cpe:2.3:a:h3:h3:0.0.15
H3 » H3 » Version: 0.0.2

cpe:2.3:a:h3:h3:0.0.2
H3 » H3 » Version: 0.0.3

cpe:2.3:a:h3:h3:0.0.3
H3 » H3 » Version: 0.0.4

cpe:2.3:a:h3:h3:0.0.4
H3 » H3 » Version: 0.0.5

cpe:2.3:a:h3:h3:0.0.5
H3 » H3 » Version: 0.0.6

cpe:2.3:a:h3:h3:0.0.6
H3 » H3 » Version: 0.0.7

cpe:2.3:a:h3:h3:0.0.7
H3 » H3 » Version: 0.0.8

cpe:2.3:a:h3:h3:0.0.8
H3 » H3 » Version: 0.0.9

cpe:2.3:a:h3:h3:0.0.9
H3 » H3 » Version: 0.2.0

cpe:2.3:a:h3:h3:0.2.0
H3 » H3 » Version: 0.2.1

cpe:2.3:a:h3:h3:0.2.1
H3 » H3 » Version: 0.2.10

cpe:2.3:a:h3:h3:0.2.10
H3 » H3 » Version: 0.2.11

cpe:2.3:a:h3:h3:0.2.11
H3 » H3 » Version: 0.2.12

cpe:2.3:a:h3:h3:0.2.12
H3 » H3 » Version: 0.2.2

cpe:2.3:a:h3:h3:0.2.2
H3 » H3 » Version: 0.2.3

cpe:2.3:a:h3:h3:0.2.3
H3 » H3 » Version: 0.2.4

cpe:2.3:a:h3:h3:0.2.4
H3 » H3 » Version: 0.2.5

cpe:2.3:a:h3:h3:0.2.5
H3 » H3 » Version: 0.2.6

cpe:2.3:a:h3:h3:0.2.6
H3 » H3 » Version: 0.2.7

cpe:2.3:a:h3:h3:0.2.7
H3 » H3 » Version: 0.2.8

cpe:2.3:a:h3:h3:0.2.8
H3 » H3 » Version: 0.2.9

cpe:2.3:a:h3:h3:0.2.9
H3 » H3 » Version: 0.3.0

cpe:2.3:a:h3:h3:0.3.0
H3 » H3 » Version: 0.3.1

cpe:2.3:a:h3:h3:0.3.1
H3 » H3 » Version: 0.3.2

cpe:2.3:a:h3:h3:0.3.2
H3 » H3 » Version: 0.3.3

cpe:2.3:a:h3:h3:0.3.3
H3 » H3 » Version: 0.3.4

cpe:2.3:a:h3:h3:0.3.4
H3 » H3 » Version: 0.3.5

cpe:2.3:a:h3:h3:0.3.5
H3 » H3 » Version: 0.3.6

cpe:2.3:a:h3:h3:0.3.6
H3 » H3 » Version: 0.3.7

cpe:2.3:a:h3:h3:0.3.7
H3 » H3 » Version: 0.3.8

cpe:2.3:a:h3:h3:0.3.8
H3 » H3 » Version: 0.3.9

cpe:2.3:a:h3:h3:0.3.9
H3 » H3 » Version: 0.4.0

cpe:2.3:a:h3:h3:0.4.0
H3 » H3 » Version: 0.4.1

cpe:2.3:a:h3:h3:0.4.1
H3 » H3 » Version: 0.4.2

cpe:2.3:a:h3:h3:0.4.2
H3 » H3 » Version: 0.5.0

cpe:2.3:a:h3:h3:0.5.0
H3 » H3 » Version: 0.5.1

cpe:2.3:a:h3:h3:0.5.1
H3 » H3 » Version: 0.5.2

cpe:2.3:a:h3:h3:0.5.2
H3 » H3 » Version: 0.5.3

cpe:2.3:a:h3:h3:0.5.3
H3 » H3 » Version: 0.5.4

cpe:2.3:a:h3:h3:0.5.4
H3 » H3 » Version: 0.5.5

cpe:2.3:a:h3:h3:0.5.5
H3 » H3 » Version: 0.5.6

cpe:2.3:a:h3:h3:0.5.6
H3 » H3 » Version: 0.5.7

cpe:2.3:a:h3:h3:0.5.7
H3 » H3 » Version: 0.6.0

cpe:2.3:a:h3:h3:0.6.0
H3 » H3 » Version: 0.7.0

cpe:2.3:a:h3:h3:0.7.0
H3 » H3 » Version: 0.7.1

cpe:2.3:a:h3:h3:0.7.1
H3 » H3 » Version: 0.7.10

cpe:2.3:a:h3:h3:0.7.10
H3 » H3 » Version: 0.7.11

cpe:2.3:a:h3:h3:0.7.11
H3 » H3 » Version: 0.7.12

cpe:2.3:a:h3:h3:0.7.12
H3 » H3 » Version: 0.7.13

cpe:2.3:a:h3:h3:0.7.13
H3 » H3 » Version: 0.7.14

cpe:2.3:a:h3:h3:0.7.14
H3 » H3 » Version: 0.7.15

cpe:2.3:a:h3:h3:0.7.15
H3 » H3 » Version: 0.7.16

cpe:2.3:a:h3:h3:0.7.16
H3 » H3 » Version: 0.7.17

cpe:2.3:a:h3:h3:0.7.17
H3 » H3 » Version: 0.7.18

cpe:2.3:a:h3:h3:0.7.18
H3 » H3 » Version: 0.7.19

cpe:2.3:a:h3:h3:0.7.19
H3 » H3 » Version: 0.7.2

cpe:2.3:a:h3:h3:0.7.2
H3 » H3 » Version: 0.7.20

cpe:2.3:a:h3:h3:0.7.20
H3 » H3 » Version: 0.7.21

cpe:2.3:a:h3:h3:0.7.21
H3 » H3 » Version: 0.7.3

cpe:2.3:a:h3:h3:0.7.3
H3 » H3 » Version: 0.7.4

cpe:2.3:a:h3:h3:0.7.4
H3 » H3 » Version: 0.7.5

cpe:2.3:a:h3:h3:0.7.5
H3 » H3 » Version: 0.7.6

cpe:2.3:a:h3:h3:0.7.6
H3 » H3 » Version: 0.7.7

cpe:2.3:a:h3:h3:0.7.7
H3 » H3 » Version: 0.7.8

cpe:2.3:a:h3:h3:0.7.8
H3 » H3 » Version: 0.7.9

cpe:2.3:a:h3:h3:0.7.9
H3 » H3 » Version: 0.8.0

cpe:2.3:a:h3:h3:0.8.0
H3 » H3 » Version: 0.8.1

cpe:2.3:a:h3:h3:0.8.1
H3 » H3 » Version: 0.8.2

cpe:2.3:a:h3:h3:0.8.2
H3 » H3 » Version: 0.8.3

cpe:2.3:a:h3:h3:0.8.3
H3 » H3 » Version: 0.8.4

cpe:2.3:a:h3:h3:0.8.4
H3 » H3 » Version: 0.8.5

cpe:2.3:a:h3:h3:0.8.5
H3 » H3 » Version: 0.8.6

cpe:2.3:a:h3:h3:0.8.6
H3 » H3 » Version: 1.0.0

cpe:2.3:a:h3:h3:1.0.0
H3 » H3 » Version: 1.0.1

cpe:2.3:a:h3:h3:1.0.1
H3 » H3 » Version: 1.0.2

cpe:2.3:a:h3:h3:1.0.2
H3 » H3 » Version: 1.1.0

cpe:2.3:a:h3:h3:1.1.0
H3 » H3 » Version: 1.10.0

cpe:2.3:a:h3:h3:1.10.0
H3 » H3 » Version: 1.10.1

cpe:2.3:a:h3:h3:1.10.1
H3 » H3 » Version: 1.10.2

cpe:2.3:a:h3:h3:1.10.2
H3 » H3 » Version: 1.11.0

cpe:2.3:a:h3:h3:1.11.0
H3 » H3 » Version: 1.11.1

cpe:2.3:a:h3:h3:1.11.1
H3 » H3 » Version: 1.12.0

cpe:2.3:a:h3:h3:1.12.0
H3 » H3 » Version: 1.13.0

cpe:2.3:a:h3:h3:1.13.0
H3 » H3 » Version: 1.13.1

cpe:2.3:a:h3:h3:1.13.1
H3 » H3 » Version: 1.14.0

cpe:2.3:a:h3:h3:1.14.0
H3 » H3 » Version: 1.15.0

cpe:2.3:a:h3:h3:1.15.0
H3 » H3 » Version: 1.15.1

cpe:2.3:a:h3:h3:1.15.1
H3 » H3 » Version: 1.15.2

cpe:2.3:a:h3:h3:1.15.2
H3 » H3 » Version: 1.15.3

cpe:2.3:a:h3:h3:1.15.3
H3 » H3 » Version: 1.15.4

cpe:2.3:a:h3:h3:1.15.4
H3 » H3 » Version: 1.15.5

cpe:2.3:a:h3:h3:1.15.5
H3 » H3 » Version: 1.2.0

cpe:2.3:a:h3:h3:1.2.0
H3 » H3 » Version: 1.2.1

cpe:2.3:a:h3:h3:1.2.1
H3 » H3 » Version: 1.3.0

cpe:2.3:a:h3:h3:1.3.0
H3 » H3 » Version: 1.4.0

cpe:2.3:a:h3:h3:1.4.0
H3 » H3 » Version: 1.5.0

cpe:2.3:a:h3:h3:1.5.0
H3 » H3 » Version: 1.6.0

cpe:2.3:a:h3:h3:1.6.0
H3 » H3 » Version: 1.6.1

cpe:2.3:a:h3:h3:1.6.1
H3 » H3 » Version: 1.6.2

cpe:2.3:a:h3:h3:1.6.2
H3 » H3 » Version: 1.6.3

cpe:2.3:a:h3:h3:1.6.3
H3 » H3 » Version: 1.6.4

cpe:2.3:a:h3:h3:1.6.4
H3 » H3 » Version: 1.6.5

cpe:2.3:a:h3:h3:1.6.5
H3 » H3 » Version: 1.6.6

cpe:2.3:a:h3:h3:1.6.6
H3 » H3 » Version: 1.7.0

cpe:2.3:a:h3:h3:1.7.0
H3 » H3 » Version: 1.7.1

cpe:2.3:a:h3:h3:1.7.1
H3 » H3 » Version: 1.8.0

cpe:2.3:a:h3:h3:1.8.0
H3 » H3 » Version: 1.8.1

cpe:2.3:a:h3:h3:1.8.1
H3 » H3 » Version: 1.8.2

cpe:2.3:a:h3:h3:1.8.2
H3 » H3 » Version: 1.9.0

cpe:2.3:a:h3:h3:1.9.0
H3 » H3 » Version: 2.0.0

cpe:2.3:a:h3:h3:2.0.0
H3 » H3 » Version: 2.0.1

cpe:2.3:a:h3:h3:2.0.1

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-33128

Products

Pricing

Contact Us