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TI-2022-01402 Aliases CVE-2022-1529GHSA-grr5-5v7v-g4c4

Prototype pollution in Mozilla Firefox ESR

Priority MEDIUM 57CWE-1321Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
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.

Summary

An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.17608 97th percentileScored 2026-11-07
Fix Partial Firefox ESR (Mozilla): 91.9.1Firefox (Mozilla): 100.0.2+2 more productsRed Hat: 12 advisoriesRed Hat: 11 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
MozillaFirefox ESRbefore 91.9.191.9.1Patch availableCNA
MozillaFirefoxbefore 100.0.2100.0.2Patch availableCNA
MozillaFirefox for Androidbefore 100.3.0100.3.0Patch availableCNA
MozillaThunderbirdbefore 91.9.191.9.1Patch availableCNA
  • Firefox ESR VendorMozilla Affected before 91.9.1 Fixed in 91.9.1 Patch available CNA
  • Firefox VendorMozilla Affected before 100.0.2 Fixed in 100.0.2 Patch available CNA
  • Firefox for Android VendorMozilla Affected before 100.3.0 Fixed in 100.3.0 Patch available CNA
  • Thunderbird VendorMozilla Affected before 91.9.1 Fixed in 91.9.1 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 100.0.2VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 91.9.1VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 91.9.1VulnerableMozilla
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 100.3.0VulnerableMozilla
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*not specified by NVDRunning onGoogle
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 100.0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 91.9.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 91.9.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 100.3.0 Vulnerable ·Mozilla
  • cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google

Remediation

  • Fix · CNA Firefox ESR (Mozilla) Fixed in 91.9.1
  • Fix · CNA Firefox (Mozilla) Fixed in 100.0.2
  • Fix · CNA Firefox for Android (Mozilla) Fixed in 100.3.0
  • Fix · CNA Thunderbird (Mozilla) Fixed in 91.9.1

Red Hat 12 advisories

  • RHSA-2022:4776 Released 2022-05-27 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-91.9.1-1.el8_6
  • RHSA-2022:4769 Released 2022-05-27 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-91.9.1-1.el8_6
  • RHSA-2022:4765 Released 2022-05-27 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-91.9.1-1.el9_0
Show 9 more Red Hat advisories
  • RHSA-2022:4768 Released 2022-05-27 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox-91.9.1-1.el8_2
  • RHSA-2022:4772 Released 2022-05-27 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-91.9.1-1.el9_0
  • RHSA-2022:4766 Released 2022-05-27 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-91.9.1-1.el8_4
  • RHSA-2022:4770 Released 2022-05-27 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-91.9.1-1.el8_1
  • RHSA-2022:4774 Released 2022-05-27 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-91.9.1-1.el8_4
  • RHSA-2022:4767 Released 2022-05-27 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-91.9.1-1.el8_1
  • RHSA-2022:4773 Released 2022-05-26 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) thunderbird-91.9.1-1.el8_2
  • RHSA-2022:4729 Released 2022-05-24 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-91.9.1-1.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-91.9.1-1.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-91.9.1-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-91.9.1-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-91.9.1-1.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-91.9.1-1.el7_9
  • RHSA-2022:4730 Released 2022-05-24 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-91.9.1-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-91.9.1-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-91.9.1-1.el7_9

Fixed in the same release

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

  • Release ·

    Mozilla Firefox, Firefox ESR and 2 more products 100.0.2, 100.3.0, 91.9.1

    2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM

    Other records, highest priority first

    • TI-2022-01668 Prototype pollution in Mozilla Firefox ESRPriority HIGH 73
    Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Critical. 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-2022:4769, RHSA-2022:4776
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:4765, RHSA-2022:4772
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2022:4767, RHSA-2022:4770
Red Hat Enterprise Linux AppStream EUS (v. 8.2)Fixed RHSA-2022:4768, RHSA-2022:4773
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2022:4766, RHSA-2022:4774
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2022:4729, RHSA-2022:4730
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2022:4729
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2022:4729
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2022:4729, RHSA-2022:4730
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2022:4729, RHSA-2022:4730
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2022:4729

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-1529
  2. 2026-10-03 Alias added: GHSA-grr5-5v7v-g4c4

References

Advisory 2

  • 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