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TI-2022-12260 Aliases CVE-2022-29909GHSA-557q-69q9-3wvh

Incorrect default permissions in Mozilla Thunderbird

Priority HIGH 73CWE-276Published · 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

Documents in deeply-nested cross-origin browsing contexts could have obtained permissions granted to the top-level origin, bypassing the existing prompt and wrongfully inheriting the top-level permissions. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00889 59th percentileScored 2026-11-07
Fix Partial Thunderbird (Mozilla): 91.9Firefox ESR (Mozilla): 91.9+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
MozillaThunderbirdbefore 91.991.9Patch availableCNA
MozillaFirefox ESRbefore 91.991.9Patch availableCNA
MozillaFirefoxbefore 100100Patch availableCNA
  • Thunderbird VendorMozilla Affected before 91.9 Fixed in 91.9 Patch available CNA
  • Firefox ESR VendorMozilla Affected before 91.9 Fixed in 91.9 Patch available CNA
  • Firefox VendorMozilla Affected before 100 Fixed in 100 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 100.0VulnerableMozilla
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*before 91.9VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 91.9VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 100.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* Versions before 91.9 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 91.9 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Thunderbird (Mozilla) Fixed in 91.9
  • Fix · CNA Firefox ESR (Mozilla) Fixed in 91.9
  • Fix · CNA Firefox (Mozilla) Fixed in 100

Red Hat 12 advisories

  • RHSA-2022:4589 Released 2022-05-18 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 9) thunderbird-91.9.0-3.el9_0
  • RHSA-2022:4590 Released 2022-05-18 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 9) firefox-91.9.0-1.el9_0
  • RHSA-2022:1725 Released 2022-05-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux Client (v. 7) thunderbird-91.9.0-3.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) thunderbird-91.9.0-3.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) thunderbird-91.9.0-3.el7_9
Show 9 more Red Hat advisories
  • RHSA-2022:1730 Released 2022-05-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream (v. 8) thunderbird-91.9.0-3.el8_5
  • RHSA-2022:1726 Released 2022-05-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird-91.9.0-3.el8_4
  • RHSA-2022:1727 Released 2022-05-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird-91.9.0-3.el8_1
  • RHSA-2022:1724 Released 2022-05-05 · Red Hat rating Important
    thunderbird security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) thunderbird-91.9.0-3.el8_2
  • RHSA-2022:1703 Released 2022-05-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux Client (v. 7) firefox-91.9.0-1.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) firefox-91.9.0-1.el7_9
    • Red Hat Enterprise Linux Server (v. 7) firefox-91.9.0-1.el7_9
    • Red Hat Enterprise Linux Server Optional (v. 7) firefox-91.9.0-1.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) firefox-91.9.0-1.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox-91.9.0-1.el7_9
  • RHSA-2022:1702 Released 2022-05-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) firefox-91.9.0-1.el8_4
  • RHSA-2022:1705 Released 2022-05-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream (v. 8) firefox-91.9.0-1.el8_5
  • RHSA-2022:1704 Released 2022-05-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) firefox-91.9.0-1.el8_2
  • RHSA-2022:1701 Released 2022-05-04 · Red Hat rating Important
    firefox security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox-91.9.0-1.el8_1

Fixed in the same release

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

  • Release ·

    Mozilla Firefox 100

    9 records Highest priority Priority HIGH 1 HIGH, 3 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2022-12261 Open redirect in Mozilla FirefoxPriority MEDIUM 60
    • TI-2022-12268 Out-of-bounds write in Mozilla ThunderbirdPriority MEDIUM 51
    • TI-2022-12269 Out-of-bounds write in Mozilla FirefoxPriority MEDIUM 41
    Show all 9 records →
  • Release ·

    Mozilla Thunderbird 91.9

    8 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM, 6 LOW

    Other records, highest priority first

    • TI-2022-12268 Out-of-bounds write in Mozilla ThunderbirdPriority MEDIUM 51
    • TI-2022-12267 Information disclosure in Mozilla ThunderbirdPriority LOW 30
    • TI-2022-12265 Clickjacking in Mozilla ThunderbirdPriority LOW 30
    Show all 8 records →
Show 1 more group
  • Release ·

    Mozilla Firefox ESR 91.9

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

    Other records, highest priority first

    • TI-2022-12268 Out-of-bounds write in Mozilla ThunderbirdPriority MEDIUM 51
    • TI-2022-12267 Information disclosure in Mozilla ThunderbirdPriority LOW 30
    • TI-2022-12265 Clickjacking in Mozilla ThunderbirdPriority LOW 30
    Show all 6 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-2022:1705, RHSA-2022:1730
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:4589, RHSA-2022:4590
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2022:1701, RHSA-2022:1727
Red Hat Enterprise Linux AppStream EUS (v. 8.2)Fixed RHSA-2022:1704, RHSA-2022:1724
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2022:1702, RHSA-2022:1726
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2022:1703, RHSA-2022:1725
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2022:1703
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2022:1703
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2022:1703, RHSA-2022:1725
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2022:1703, RHSA-2022:1725
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2022:1703

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-29909
  2. 2026-10-03 Alias added: GHSA-557q-69q9-3wvh

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