CVE-2026-18295

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29510.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

GStreamer Security Advisory

https://gstreamer.freedesktop.org/security/sa-2026-0050.html
generic

ZDI-26-463 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-463/

Vendor Advisories for CVE-2026-18295(3)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgstreamer1-plugins-good-0:1.22.12-7.el9_8.82026-08-24redhat
redhatgstreamer1-plugins-good-0:1.16.1-7.el8_10.72026-08-24redhat
redhatgstreamer1-plugins-good-0:1.26.7-2.el10_2.72026-08-24redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-good1.01.22.0-5 ... 1.29.2-1 (74 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-good1.01.26.10-1 ... 1.29.2-1 (31 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
gst-plugins-good1.01.26.10-1 ... 1.28.4-1 (25 versions)1.28.5-1—

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 35× in last 7d / 157× 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.

Showing the most recent 100 of 167 total refreshes for this CVE.

  1. 2026-09-20 22:54 UTCEG score recompute
  2. 2026-09-20 22:54 UTCVendor advisory
  3. 2026-09-20 22:54 UTCGHSA enrichment
  4. 2026-09-20 10:46 UTCVendor advisory
  5. 2026-09-20 10:46 UTCGHSA enrichment
  6. 2026-09-19 22:39 UTCEG score recompute
  7. 2026-09-19 22:39 UTCVendor advisory
  8. 2026-09-19 22:39 UTCGHSA enrichment
  9. 2026-09-19 10:12 UTCVendor advisory
  10. 2026-09-19 10:12 UTCGHSA enrichment
  11. 2026-09-18 21:43 UTCEG score recompute
  12. 2026-09-18 21:43 UTCVendor advisory
  13. 2026-09-18 21:43 UTCGHSA enrichment
  14. 2026-09-18 19:27 UTCEPSS rescore
  15. 2026-09-18 09:35 UTCVendor advisory
  16. 2026-09-18 09:35 UTCGHSA enrichment
  17. 2026-09-17 21:23 UTCEG score recompute
  18. 2026-09-17 21:23 UTCVendor advisory
  19. 2026-09-17 21:23 UTCGHSA enrichment
  20. 2026-09-17 08:13 UTCVendor advisory
  21. 2026-09-17 08:13 UTCGHSA enrichment
  22. 2026-09-16 20:02 UTCEG score recompute
  23. 2026-09-16 20:02 UTCVendor advisory
  24. 2026-09-16 20:02 UTCGHSA enrichment
  25. 2026-09-16 14:07 UTCEPSS rescore
Show 75 more
  1. 2026-09-16 05:14 UTCEPSS rescore
  2. 2026-09-16 04:40 UTCVendor advisory
  3. 2026-09-16 04:40 UTCGHSA enrichment
  4. 2026-09-15 16:10 UTCVendor advisory
  5. 2026-09-15 16:10 UTCGHSA enrichment
  6. 2026-09-15 04:02 UTCEG score recompute
  7. 2026-09-15 04:02 UTCVendor advisory
  8. 2026-09-15 04:02 UTCGHSA enrichment
  9. 2026-09-14 15:48 UTCVendor advisory
  10. 2026-09-14 15:48 UTCGHSA enrichment
  11. 2026-09-14 03:40 UTCEG score recompute
  12. 2026-09-14 03:40 UTCVendor advisory
  13. 2026-09-14 03:40 UTCGHSA enrichment
  14. 2026-09-13 16:46 UTCEPSS rescore
  15. 2026-09-13 15:33 UTCVendor advisory
  16. 2026-09-13 15:32 UTCGHSA enrichment
  17. 2026-09-13 03:23 UTCVendor advisory
  18. 2026-09-13 03:23 UTCGHSA enrichment
  19. 2026-09-12 15:15 UTCEG score recompute
  20. 2026-09-12 15:15 UTCVendor advisory
  21. 2026-09-12 15:15 UTCGHSA enrichment
  22. 2026-09-12 15:00 UTCEPSS rescore
  23. 2026-09-12 03:06 UTCVendor advisory
  24. 2026-09-12 03:06 UTCGHSA enrichment
  25. 2026-09-11 14:58 UTCEG score recompute
  26. 2026-09-11 14:58 UTCVendor advisory
  27. 2026-09-11 14:58 UTCGHSA enrichment
  28. 2026-09-11 14:52 UTCEPSS rescore
  29. 2026-09-11 09:36 UTCEPSS rescore
  30. 2026-09-11 02:49 UTCVendor advisory
  31. 2026-09-11 02:49 UTCGHSA enrichment
  32. 2026-09-10 14:41 UTCEG score recompute
  33. 2026-09-10 14:41 UTCVendor advisory
  34. 2026-09-10 14:41 UTCGHSA enrichment
  35. 2026-09-10 09:34 UTCEPSS rescore
  36. 2026-09-10 02:33 UTCVendor advisory
  37. 2026-09-10 02:33 UTCGHSA enrichment
  38. 2026-09-09 14:25 UTCVendor advisory
  39. 2026-09-09 14:25 UTCGHSA enrichment
  40. 2026-09-09 01:58 UTCEG score recompute
  41. 2026-09-09 01:58 UTCVendor advisory
  42. 2026-09-09 01:58 UTCGHSA enrichment
  43. 2026-09-08 22:00 UTCEPSS rescore
  44. 2026-09-07 22:07 UTCEG score recompute
  45. 2026-09-07 22:07 UTCVendor advisory
  46. 2026-09-07 22:07 UTCGHSA enrichment
  47. 2026-09-07 16:01 UTCEPSS rescore
  48. 2026-09-07 09:59 UTCVendor advisory
  49. 2026-09-07 09:58 UTCGHSA enrichment
  50. 2026-09-06 21:43 UTCEG score recompute
  51. 2026-09-06 21:43 UTCVendor advisory
  52. 2026-09-06 21:43 UTCGHSA enrichment
  53. 2026-09-06 13:47 UTCEPSS rescore
  54. 2026-09-06 09:34 UTCVendor advisory
  55. 2026-09-06 09:34 UTCGHSA enrichment
  56. 2026-09-05 21:26 UTCEG score recompute
  57. 2026-09-05 21:26 UTCVendor advisory
  58. 2026-09-05 21:26 UTCGHSA enrichment
  59. 2026-09-05 09:19 UTCVendor advisory
  60. 2026-09-05 09:19 UTCGHSA enrichment
  61. 2026-09-04 21:10 UTCEG score recompute
  62. 2026-09-04 21:10 UTCVendor advisory
  63. 2026-09-04 21:10 UTCGHSA enrichment
  64. 2026-09-04 07:43 UTCEG score recompute
  65. 2026-09-04 07:43 UTCVendor advisory
  66. 2026-09-04 07:43 UTCGHSA enrichment
  67. 2026-09-04 05:06 UTCEPSS rescore
  68. 2026-09-03 19:32 UTCVendor advisory
  69. 2026-09-03 19:32 UTCGHSA enrichment
  70. 2026-09-03 07:16 UTCVendor advisory
  71. 2026-09-03 07:16 UTCGHSA enrichment
  72. 2026-09-02 19:07 UTCEG score recompute
  73. 2026-09-02 19:07 UTCVendor advisory
  74. 2026-09-02 19:07 UTCGHSA enrichment
  75. 2026-09-02 14:11 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Same vendor

3 shown

redhat:RHSA-2026:59133 · redhat:RHSA-2026:59152

Frequently asked(5)

What is CVE-2026-18295?
CVE-2026-18295 is a high vulnerability published on August 20, 2026. GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page…
When was CVE-2026-18295 disclosed?
CVE-2026-18295 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18295 actively exploited?
CVE-2026-18295 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 88.3% of all scored CVEs.
What is the CVSS score of CVE-2026-18295?
CVE-2026-18295 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-18295?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18295, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-18295

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