CVE-2026-5119 (GCVE-0-2026-5119)
Vulnerability from cvelistv5 – Published: 2026-03-30 05:35 – Updated: 2026-06-09 08:57
VLAI
EPSS
VEX
Title
Libsoup: libsoup: information disclosure via cleartext transmission of cookies during https tunnel establishment
Summary
A flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, leading to potential session hijacking or user impersonation.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-30 16:00 UTC
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
References
17 references
Impacted products
18 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:3.6.5-3.el10_1.11 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
||
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:3.6.5-3.el10_2.11 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
||
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:3.6.5-3.el10_0.15 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
||
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support |
Unaffected:
0:2.62.2-12.el7_9 , < *
(rpm)
cpe:/o:redhat:rhel_els:7 |
||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.62.3-14.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/o:redhat:enterprise_linux:8::baseos |
||
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:2.62.3-2.el8_4.9 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/o:redhat:rhel_aus:8.4::baseos cpe:/o:redhat:rhel_eus_long_life:8.4::baseos |
||
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:2.62.3-2.el8_4.9 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/o:redhat:rhel_aus:8.4::baseos cpe:/o:redhat:rhel_eus_long_life:8.4::baseos |
||
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:2.62.3-2.el8_6.9 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_eus_long_life:8.6::appstream cpe:/o:redhat:rhel_aus:8.6::baseos cpe:/o:redhat:rhel_eus_long_life:8.6::baseos |
||
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On |
Unaffected:
0:2.62.3-2.el8_6.9 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_eus_long_life:8.6::appstream cpe:/o:redhat:rhel_aus:8.6::baseos cpe:/o:redhat:rhel_eus_long_life:8.6::baseos |
||
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:2.62.3-3.el8_8.9 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/o:redhat:rhel_e4s:8.8::baseos cpe:/o:redhat:rhel_tus:8.8::baseos |
||
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:2.62.3-3.el8_8.9 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/o:redhat:rhel_e4s:8.8::baseos cpe:/o:redhat:rhel_tus:8.8::baseos |
||
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.72.0-12.el9_7.6 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.72.0-16.el9_8.1 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:2.72.0-8.el9_0.10 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:2.72.0-8.el9_2.11 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
Unaffected:
0:2.72.0-8.el9_4.10 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.4::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:2.72.0-10.el9_6.7 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6::appstream |
||
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
Date Public
2026-03-30 05:30
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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