CVE-2026-78958

LOWPre-NVD 3.13.1—
EchelonGraph scoreMEDIUM confidence

Score 3.1 from GitHub Security Advisory (severity: LOW) published 2026-08-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 3.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
3.1EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 3.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Uninitialized resource in Skia in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to potentially obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
3.1
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
3.1LOWmedium confidence
EG Risk
14
EG Risk 14/100

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 (value × EchelonGraph’s weight)
Severity31% × 45%
The EG Score, 3.1 of 10.
Exploitation0% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
25th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

August 25, 2026

Last Modified

August 31, 2026

References (2)

Vendor Advisories for CVE-2026-78958(3)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatwebkit2gtk3-0:2.54.0-1.el8_102026-09-30redhat
redhatwebkit2gtk3-0:2.54.0-1.el9_82026-09-21redhat

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

(9 across 3 ecosystems)
Debian:12(3)
PackageVulnerable rangeFix by version rangeDependents
chromium113.0.5672.126-1 ... 152.0.7977.64-1 (412 versions)
  • every version up to 152.0.7977.75-1~deb12u1: fixed in 152.0.7977.75-1~deb12u1
—
webkit2gtk2.40.1-1 ... 2.54.0-1~exp1 (168 versions)
  • every version on: no fix on record
—
wpewebkit2.38.6-1 ... 2.54.0-2 (56 versions)
  • every version on: no fix on record
—
Debian:13(3)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb12u1 (178 versions)
  • every version up to 152.0.7977.75-1~deb13u1: fixed in 152.0.7977.75-1~deb13u1
—
webkit2gtk2.48.3-1 ... 2.53.92-1 (59 versions)
  • every version up to 2.54.0-1~deb13u1: fixed in 2.54.0-1~deb13u1
—
wpewebkit2.48.3-1 ... 2.54.0-2 (22 versions)
  • every version on: no fix on record
—
Debian:14(3)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (176 versions)
  • every version up to 152.0.7977.64-1: fixed in 152.0.7977.64-1
—
webkit2gtk2.48.3-1 ... 2.54.0-1~exp1 (61 versions)
  • every version on: no fix on record
—
wpewebkit2.48.3-1 ... 2.52.6-1 (20 versions)
  • every version up to 2.54.0-1: fixed in 2.54.0-1
—

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 13× in last 7d / 51× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 97 are merged into the row they repeat.

  1. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  2. 2026-10-10 11:33 UTCEG score recompute
  3. 2026-10-10 11:33 UTCVendor advisory
  4. 2026-10-10 11:33 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  5. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  6. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  7. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  8. 2026-10-06 21:36 UTCEG score recompute
  9. 2026-10-06 21:36 UTCVendor advisory
  10. 2026-10-06 21:36 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  11. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  12. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  13. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  14. 2026-10-03 16:19 UTCEG score recompute
  15. 2026-10-03 16:19 UTCVendor advisory
  16. 2026-10-03 16:19 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  19. 2026-09-30 06:37 UTCEG score recompute
  20. 2026-09-30 06:37 UTCVendor advisory
  21. 2026-09-30 06:37 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  22. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  23. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  24. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  25. 2026-09-26 21:54 UTCEG score recompute
Show 68 more
  1. 2026-09-26 21:54 UTCVendor advisory
  2. 2026-09-26 21:54 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  3. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  4. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  5. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  6. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  7. 2026-09-23 09:13 UTCEG score recompute
  8. 2026-09-23 09:13 UTCVendor advisory
  9. 2026-09-23 09:13 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  10. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  12. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  13. 2026-09-20 03:56 UTCEG score recompute
  14. 2026-09-20 03:56 UTCVendor advisory
  15. 2026-09-20 03:56 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  16. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  17. 2026-09-16 22:39 UTCEG score recompute
  18. 2026-09-16 22:39 UTCVendor advisory
  19. 2026-09-16 22:39 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  20. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  21. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  22. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  23. 2026-09-13 17:17 UTCEG score recompute
  24. 2026-09-13 17:17 UTCVendor advisory
  25. 2026-09-13 17:17 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  26. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  27. 2026-09-10 12:00 UTCEG score recompute
  28. 2026-09-10 12:00 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  29. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  30. 2026-09-07 05:39 UTCEG score recompute
  31. 2026-09-07 05:39 UTCVendor advisory
  32. 2026-09-07 05:39 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  33. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  34. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  35. 2026-09-04 00:19 UTCEG score recompute
  36. 2026-09-04 00:19 UTCVendor advisory
  37. 2026-09-04 00:19 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  38. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  39. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  40. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  41. 2026-08-31 19:02 UTCEG score recompute
  42. 2026-08-31 19:02 UTCVendor advisory
  43. 2026-08-31 19:02 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc · GitHub severity LOW · GitHub CVSS 3.1
  44. 2026-08-31 14:28 UTCVendor advisory
  45. 2026-08-31 14:28 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  46. 2026-08-31 14:01 UTCEG score recompute▼ 3.40
  47. 2026-08-31 14:01 UTCVendor advisory
  48. 2026-08-31 14:01 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  49. 2026-08-31 13:59 UTCMITRE cvelistV5CVSS v3 → 3.1 · severity → LOW
  50. 2026-08-31 05:24 UTCVendor advisory
  51. 2026-08-31 05:24 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  52. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  53. 2026-08-30 07:40 UTCVendor advisory
  54. 2026-08-30 07:40 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  55. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  56. 2026-08-29 09:56 UTCVendor advisory
  57. 2026-08-29 09:56 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  58. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  59. 2026-08-28 12:12 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  60. 2026-08-27 14:27 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  61. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  62. 2026-08-26 16:42 UTCEG score recompute
  63. 2026-08-26 16:42 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  64. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  65. 2026-08-25 21:33 UTCGHSA enrichmentGHSA-99gg-chh4-2jjc
  66. 2026-08-25 21:25 UTCNVD update
  67. 2026-08-25 20:31 UTCEG score recompute
  68. 2026-08-25 20:25 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-78958?
CVE-2026-78958 is a low vulnerability published on August 25, 2026. Uninitialized resource in Skia in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to potentially obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
When was the CVE record for CVE-2026-78958 published?
The CVE record for CVE-2026-78958 was published on August 25, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 31, 2026; the record at its source may have been updated since.
Is CVE-2026-78958 actively exploited?
CVE-2026-78958 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78958?
CVE-2026-78958 has a CVSS v3.1 base score of 3.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-78958?
A fix for CVE-2026-78958 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-78958 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-78958

Explore →

Is Your Infrastructure Affected by CVE-2026-78958?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs