VulnSocial

CVE-2026-66337Disclosure(gnome / enterprise_linux)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in libsoup. An unsigned integer underflow in the soup_filter_input_stream_read_until() function causes a heap buffer over-read when parsing multipart HTTP responses. A malicious HTTP server can exploit this by sending a crafted multipart response, potentially causing the client application to crash or disclose sensitive heap memory.

gnome CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Exploit / PoC references
Vendor / third-party advisories
Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • enterprise_linux
  • libsoup

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked 1d ago at 2 mentions (2026-07-25); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
gnomeredhat
Products
enterprise_linuxlibsoup

6 versions affected across 2 products

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-07-25: 2Mentions · 2026-07-29: 1Technical Details · 2026-07-25: 2Technical Details · 2026-07-29: 107-2507-29
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-07-252
Disclosure2
2026-07-291
Disclosure1
Full discourse3 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-66337 A flaw was found in libsoup. An unsigned integer underflow in the soup_filter_input_stream_read_until() function causes a heap buffer over-read when parsing multipart… https://www.cve.org/CVERecord?id=CVE-2026-66337

    Post summary

    The post briefly announces an unsigned integer underflow in libsoup (CVE‑2026‑66337) that causes a heap buffer over‑read, but it does not provide any proof of concept, exploit code, patch, or evidence of active exploitation.

    000101.3K
    57.9K followersView on X
  • Israel@f1tym1
    Disclosure

    CVE-2026-66337 affects Red Hat Enterprise Linux, causing heap buffer over-read via integer underflow in libsoup. Severity: Moderate (CVSS 6․5). https://ift.tt/RgEnsHm

    Post summary

    The post announces CVE‑2026‑66337, detailing a moderate‑severity heap buffer over‑read due to integer underflow in libsoup on Red Hat Enterprise Linux.

    0000041
    1.0K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-66337 A flaw was found in libsoup. An unsigned integer underflow in the soup_filter_input_stream_read_until() function causes a heap buffer over-read when parsing multipart… https://www.cve.org/CVERecord?id=CVE-2026-66337 ----- Traducción: Se encontró una vu… http://infoflow.cloud`

    Post summary

    The message discloses CVE‑2026‑66337, explaining an unsigned integer underflow in libsoup leading to a heap buffer over‑read during multipart parsing.

    0000051
    95 followersView on X
CPE platform detail6 entries

6 of 6 entries

PartVendorProductVersionTarget SWTarget HW
Appgnomelibsoup---
OSredhatenterprise_linux10.0--
OSredhatenterprise_linux6.0--
OSredhatenterprise_linux7.0--
OSredhatenterprise_linux8.0--
OSredhatenterprise_linux9.0--

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