CVE-2026-102559 @ Library

"CVE-2026-102559"
"libsoup-gnome2.4-1-2.56.0-2+deb9u2"
"libsoup-gnome2.4-1"
"libsoup"
"libsoup2.4-1-2.56.0-2+deb9u2"
"Am I vulnerable?"

Status

new

Priority

2.08

Match score

4.0

Risk

DoS Remote

CVSS

8.6 HIGH

Reason

cpe: libsoup; pkgs: libsoup-gnome2.4-1; version: in-range: libsoup-gnome2.4-1-2.56.0-2+deb9u2; risk:dos

Created

2026-10-17T10:16:25Z

Updated

2026-10-20T10:17:25Z

Package interrogation (copy)

Run on the host — click to copy a command. Debian/apt

Package	Commands
libsoup-gnome2.4-1-2.56.0-2+deb9u2
libsoup-gnome2.4-1
libsoup
libsoup2.4-1-2.56.0-2+deb9u2

Inventory lookup

Search package inventory across systems, then return here. Create a ticket on systems the matcher missed.

Suggestions: libsoup-gnome2.4 · libsoup · libsoup-gnome2.4-1

System	Matches	Ticket for CVE-2026-102559
Archive	libsoup-gnome2.4-1 2.64.2-2; libsoup2.4-1 2.64.2-2	new open
Library	libsoup-gnome2.4-1 2.56.0-2+deb9u2; libsoup2.4-1 2.56.0-2+deb9u2	new open
Saiph	libsoup-gnome2.4-1 2.64.2-2; libsoup2.4-1 2.64.2-2	new open

Same product CVEs in your queue

Other open tickets that look like the same product. Closed tickets are omitted unless they are already pegged to this CVE.

CVE	CVSS	Systems	Status	Matched	Already related
CVE-2026-102560	8.6	Archive, Library, Saiph	new	libsoup-gnome2.4	—
CVE-2026-102558	8.6	Archive, Library, Saiph	new	libsoup-gnome2.4	—
CVE-2026-102557	8.6	Archive, Library, Saiph	new	libsoup-gnome2.4	—
CVE-2026-102556	8.6	Archive, Library, Saiph	new	libsoup-gnome2.4	—
CVE-2026-102555	8.2	Archive, Library, Saiph	new	libsoup-gnome2.4	—

Related CVE (same fix)

Point this ticket’s CVE at a higher-priority / same-fix primary so you only triage one.

Host OS / kernel

Debian GNU/Linux 9 (stretch) (9) · debian

Arch

x86_64

kernel_release

uname -r → 4.9.0-19-amd64

kernel_version

uname -v → #1 SMP Debian 4.9.320-2 (2022-06-30)

For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.

Same CVE on other hosts

Open the ticket for this CVE on another system.

System	Status	Priority	Updated
Archive	new	0.79	2026-10-20T10:17:25Z	Open
Saiph	new	0.79	2026-10-20T10:17:25Z	Open

Description

A flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow.

Update status

Add note only

References

NVD: CVE-2026-102559