SUSE · Security update for libsoup
Affects SUSESource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.2 High.
Data as of 4 Nov 2026, 02:14 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 8.2 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10libsoup3 | Affected– | Fixed in– |
| Red Hat Enterprise Linux 10.0 Extended Update Supportlibsoup3 | Affected– | Fixed in– |
| Red Hat Enterprise Linux 6libsoup | Affected– | Fixed in– |
| Red Hat Enterprise Linux 7libsoup | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8libsoup | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9libsoup | Affected– | Fixed in– |
Description
This update for libsoup fixes the following issues: - CVE-2026-12547: Header "Proxy-Authorization" leads to credentials being send to different proxy after proxy switch (bsc#1272195). - CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196). - CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol violation (bsc#1271446). - CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL- termination assumption (bsc#1271447). - CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak (bsc#1271448). - CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via an oversized multipart boundary string (bsc#1271449). - CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels (bsc#1273156). - CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299). - CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300). - CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301). - CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302). - CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303). - CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304). - CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling (bsc#1283831).
References
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/suse-su-2026_24470-1.json (opens in a new tab)
- suse.com/support/update/announcement/2026/suse-su-202624470-1/ (opens in a new tab)
- bugzilla.suse.com/1271446 (opens in a new tab)
- bugzilla.suse.com/1271447 (opens in a new tab)
- bugzilla.suse.com/1271448 (opens in a new tab)
- bugzilla.suse.com/1271449 (opens in a new tab)
- bugzilla.suse.com/1272195 (opens in a new tab)
- bugzilla.suse.com/1272196 (opens in a new tab)
- bugzilla.suse.com/1273156 (opens in a new tab)
- bugzilla.suse.com/1283299 (opens in a new tab)
- bugzilla.suse.com/1283300 (opens in a new tab)
- bugzilla.suse.com/1283301 (opens in a new tab)
- bugzilla.suse.com/1283302 (opens in a new tab)
- bugzilla.suse.com/1283303 (opens in a new tab)
- bugzilla.suse.com/1283304 (opens in a new tab)
- bugzilla.suse.com/1283831 (opens in a new tab)
- suse.com/security/cve/CVE-2026-102555/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-102556/ (opens in a new tab)