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CVE-2026-6755

Medium priority
Needs evaluation

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
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CVE-2026-6754

Medium priority
Needs evaluation

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-6753

Medium priority
Needs evaluation

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-6750

Medium priority
Needs evaluation

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-6747

Medium priority
Needs evaluation

Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-6746

Medium priority
Needs evaluation

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 18.04 LTS
firefox
thunderbird
mozjs38 Needs evaluation
mozjs52 Ignored
mozjs68
mozjs78
mozjs91
mozjs102
mozjs115
Show all 9 packages Show less packages

CVE-2026-4367

Medium priority
Needs evaluation

libXpm Out-of-bounds read in xpmNextWord()

2 affected packages

libxpm, motif

Package 18.04 LTS
libxpm Needs evaluation
motif Needs evaluation
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CVE-2026-40706

Medium priority
Needs evaluation

In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfs_build_permissions_posix() in acls.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image....

1 affected package

ntfs-3g

Package 18.04 LTS
ntfs-3g Needs evaluation
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CVE-2026-40244

Medium priority
Not affected

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through...

1 affected package

openexr

Package 18.04 LTS
openexr Not affected
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CVE-2026-39378

Medium priority
Needs evaluation

The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. In versions 6.5 through 7.17.0, when `HTMLExporter.embed_images=True`, nbconvert's markdown renderer allows arbitrary...

1 affected package

nbconvert

Package 18.04 LTS
nbconvert Needs evaluation
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