CVE-2026-85197

HIGHPre-NVD 7.67.6—
EchelonGraph scoreHIGH confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-09-04. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this weekElevated
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using HTTP/2, and the server sends a GOAWAY frame while the file body is being read asynchronously. This can lead to memory corruption, potentially resulting in information disclosure or arbitrary code execution.

CVSS v3
7.6
EG Score
7.6(high)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity76% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 4, 2026
Patch available. Sources: redhat.
redhat

2528425 – (CVE-2026-85197) CVE-2026-85197 libsoup: libsoup: Heap use-after-free in libsoup HTTP/2 client on_data_read() via GOAWAY during body upload

https://bugzilla.redhat.com/show_bug.cgi?id=2528425
redhat Patch Available

CVE-2026-85197 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-85197

Vendor Advisories for CVE-2026-85197(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatlibsoup3-0:3.6.5-3.el10_2.142026-09-16redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFixed inDependents
libsoup2.42.74.3-1 ... 2.74.3-9 (16 versions)——
libsoup33.2.2-2 ... 3.6.6-1 (35 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
libsoup2.42.74.3-10.1, 2.74.3-11——
libsoup33.6.5-3 ... 3.6.6-1 (8 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libsoup33.6.5-3 ... 3.6.6-1 (8 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 44× in last 7d / 87× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 06:05 UTCEG score recompute
  2. 2026-09-19 06:05 UTCVendor advisory
  3. 2026-09-19 06:05 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 18:52 UTCVendor advisory
  6. 2026-09-18 18:52 UTCGHSA enrichment
  7. 2026-09-18 07:39 UTCVendor advisory
  8. 2026-09-18 07:39 UTCGHSA enrichment
  9. 2026-09-17 20:26 UTCEG score recompute
  10. 2026-09-17 20:26 UTCVendor advisory
  11. 2026-09-17 20:26 UTCGHSA enrichment
  12. 2026-09-17 19:32 UTCEPSS rescore
  13. 2026-09-17 05:44 UTCVendor advisory
  14. 2026-09-17 05:44 UTCGHSA enrichment
  15. 2026-09-16 18:27 UTCEG score recompute
  16. 2026-09-16 18:27 UTCVendor advisory
  17. 2026-09-16 18:27 UTCGHSA enrichment
  18. 2026-09-16 17:52 UTCEG score recompute
  19. 2026-09-16 17:52 UTCVendor advisory
  20. 2026-09-16 17:52 UTCGHSA enrichment
  21. 2026-09-16 14:09 UTCEPSS rescore
  22. 2026-09-16 07:26 UTCEG score recompute
  23. 2026-09-16 07:26 UTCVendor advisory
  24. 2026-09-16 07:26 UTCGHSA enrichment
  25. 2026-09-16 05:15 UTCEPSS rescore
Show 62 more
  1. 2026-09-15 20:13 UTCVendor advisory
  2. 2026-09-15 20:13 UTCGHSA enrichment
  3. 2026-09-15 09:00 UTCEG score recompute
  4. 2026-09-15 09:00 UTCVendor advisory
  5. 2026-09-15 09:00 UTCGHSA enrichment
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-14 21:47 UTCVendor advisory
  9. 2026-09-14 21:47 UTCGHSA enrichment
  10. 2026-09-14 10:34 UTCVendor advisory
  11. 2026-09-14 10:34 UTCGHSA enrichment
  12. 2026-09-13 23:19 UTCEG score recompute
  13. 2026-09-13 23:19 UTCVendor advisory
  14. 2026-09-13 23:19 UTCGHSA enrichment
  15. 2026-09-13 12:07 UTCVendor advisory
  16. 2026-09-13 12:07 UTCGHSA enrichment
  17. 2026-09-13 00:54 UTCEG score recompute
  18. 2026-09-13 00:54 UTCVendor advisory
  19. 2026-09-13 00:54 UTCGHSA enrichment
  20. 2026-09-12 13:41 UTCVendor advisory
  21. 2026-09-12 13:41 UTCGHSA enrichment
  22. 2026-09-12 02:28 UTCVendor advisory
  23. 2026-09-12 02:28 UTCGHSA enrichment
  24. 2026-09-11 15:16 UTCEG score recompute
  25. 2026-09-11 15:16 UTCVendor advisory
  26. 2026-09-11 15:16 UTCGHSA enrichment
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 14:53 UTCEPSS rescore
  29. 2026-09-11 04:02 UTCGHSA enrichment
  30. 2026-09-10 16:50 UTCEG score recompute
  31. 2026-09-10 16:50 UTCGHSA enrichment
  32. 2026-09-10 05:37 UTCGHSA enrichment
  33. 2026-09-09 18:24 UTCVendor advisory
  34. 2026-09-09 18:24 UTCGHSA enrichment
  35. 2026-09-09 07:10 UTCEG score recompute
  36. 2026-09-09 07:10 UTCGHSA enrichment
  37. 2026-09-08 22:01 UTCEPSS rescore
  38. 2026-09-08 19:58 UTCGHSA enrichment
  39. 2026-09-08 13:17 UTCGHSA enrichment
  40. 2026-09-08 02:03 UTCEG score recompute
  41. 2026-09-08 02:02 UTCGHSA enrichment
  42. 2026-09-07 14:49 UTCGHSA enrichment
  43. 2026-09-07 03:35 UTCGHSA enrichment
  44. 2026-09-06 16:21 UTCEG score recompute
  45. 2026-09-06 16:21 UTCGHSA enrichment
  46. 2026-09-06 13:48 UTCEPSS rescore
  47. 2026-09-06 05:08 UTCGHSA enrichment
  48. 2026-09-05 17:55 UTCEG score recompute
  49. 2026-09-05 17:55 UTCGHSA enrichment
  50. 2026-09-05 15:31 UTCEPSS rescore
  51. 2026-09-05 06:41 UTCGHSA enrichment
  52. 2026-09-04 19:19 UTCEG score recompute
  53. 2026-09-04 19:19 UTCGHSA enrichment
  54. 2026-09-04 18:40 UTCEG score recompute
  55. 2026-09-04 18:40 UTCGHSA enrichment
  56. 2026-09-04 15:26 UTCEG score recompute
  57. 2026-09-04 15:26 UTCGHSA enrichment
  58. 2026-09-04 14:49 UTCEG score recompute
  59. 2026-09-04 14:49 UTCGHSA enrichment
  60. 2026-09-04 08:29 UTCEG score recompute
  61. 2026-09-04 07:44 UTCEG score recompute
  62. 2026-09-04 07:43 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-85197?
CVE-2026-85197 is a high vulnerability published on September 4, 2026. A flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using HTTP/2, and the server sends a GOAWAY frame while the file…
When was CVE-2026-85197 disclosed?
CVE-2026-85197 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85197 actively exploited?
CVE-2026-85197 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 86.9% of all scored CVEs.
What is the CVSS score of CVE-2026-85197?
CVE-2026-85197 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-85197?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85197, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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