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TI-2022-20913 Aliases CVE-2022-42927GHSA-9jhw-8cjq-cxc8

Origin validation error in Mozilla Firefox

Priority HIGH 70CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 11 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-346.

Summary

A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via `performance.getEntries()`. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00445 38th percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 106Firefox ESR (Mozilla): 102.4+1 more productRed Hat: 12 advisoriesRed Hat: 11 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 106106Patch availableCNA
MozillaFirefox ESRbefore 102.4102.4Patch availableCNA
MozillaThunderbirdbefore 102.4102.4Patch availableCNA
  • Firefox VendorMozilla Affected before 106 Fixed in 106 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 102.4 Fixed in 102.4 Patch available CNA
  • Thunderbird VendorMozilla Affected before 102.4 Fixed in 102.4 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 106.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 102.4VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 102.4VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 106.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 102.4 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 102.4 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 106
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 102.4
  • Fix · CNA Thunderbird (Mozilla) Fixed in 102.4

Red Hat 12 advisories

  • RHSA-2022:7190 Released 2022-10-25 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-102.4.0-1.el8_6
  • RHSA-2022:7184 Released 2022-10-25 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-102.4.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-102.4.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-102.4.0-1.el7_9
  • RHSA-2022:7181 Released 2022-10-25 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-102.4.0-1.el8_4
Show 9 more Red Hat advisories
  • RHSA-2022:7183 Released 2022-10-25 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-102.4.0-1.el8_1
  • RHSA-2022:7182 Released 2022-10-25 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) thunderbird-102.4.0-1.el8_2
  • RHSA-2022:7178 Released 2022-10-25 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-102.4.0-1.el9_0
  • RHSA-2022:7071 Released 2022-10-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-102.4.0-1.el9_0
  • RHSA-2022:7072 Released 2022-10-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-102.4.0-1.el8_4
  • RHSA-2022:7069 Released 2022-10-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-102.4.0-1.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-102.4.0-1.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-102.4.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-102.4.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-102.4.0-1.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-102.4.0-1.el7_9
  • RHSA-2022:7070 Released 2022-10-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-102.4.0-1.el8_6
  • RHSA-2022:7068 Released 2022-10-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox-102.4.0-1.el8_2
  • RHSA-2022:7066 Released 2022-10-20 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-102.4.0-1.el8_1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 106

    7 records Highest priority Priority HIGH 1 HIGH, 4 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2022-20917 Cleartext storage of sensitive information in Mozilla FirefoxPriority MEDIUM 49
    • TI-2022-23228 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 47
    • TI-2022-20914 NULL pointer dereference in Mozilla FirefoxPriority MEDIUM 42
    Show all 7 records →
  • Release ·

    Mozilla Firefox ESR, Thunderbird 102.4

    4 records Highest priority Priority HIGH 1 HIGH, 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-20914 NULL pointer dereference in Mozilla FirefoxPriority MEDIUM 42
    • TI-2022-20918 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 41
    • TI-2022-20915 Uncontrolled resource consumption in Mozilla FirefoxPriority LOW 30
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2022:7070, RHSA-2022:7190
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:7071, RHSA-2022:7178
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2022:7066, RHSA-2022:7183
Red Hat Enterprise Linux AppStream EUS (v. 8.2)Fixed RHSA-2022:7068, RHSA-2022:7182
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2022:7072, RHSA-2022:7181
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2022:7069, RHSA-2022:7184
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2022:7069
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2022:7069
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2022:7069, RHSA-2022:7184
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2022:7069, RHSA-2022:7184
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2022:7069

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-42927
  2. 2026-10-03 Alias added: GHSA-9jhw-8cjq-cxc8

References

Advisory 3

Other 1

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences