Description
Insufficient data validation in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Chrome | unspecified – < 88.0.4324.96 | 88.0.4324.96 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | chromium | 88.0.4324.96-0.1 | — |
| Debian 13 | chromium | 88.0.4324.96-0.1 | — |
| Debian 12 | chromium | 88.0.4324.96-0.1 | — |
| Debian 10 | chromium | 88.0.4324.146-1~deb10u1 | DSA-4846-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | chromium-browser | 89.0.4389.82-0ubuntu0.18.04.1 | — |
| Ubuntu 16.04 LTS | chromium-browser | 89.0.4389.82-0ubuntu0.16.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP2 | chromium | 88.0.4324.96-bp152.2.53.1 | openSUSE-SU-2021:0186-1 |
| SUSE Package Hub 15 SP2 | libqt5-qtwebengine | 5.15.3-bp152.3.3.1 | openSUSE-SU-2021:1016-1 |
| SUSE Package Hub 15 SP1 | chromium | 88.0.4324.96-bp151.3.156.1 | openSUSE-SU-2021:0177-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | chromium | 93.0.4577.82-1.1 | openSUSE-SU-2024:12948-1, openSUSE-SU-2024:10681-1 |
| openSUSE Leap 15.2 | chromium | 88.0.4324.96-lp152.2.66.1 | openSUSE-SU-2021:0173-1 |
| openSUSE Leap 15.2 | libqt5-qtwebengine | 5.15.3-lp152.3.3.4 | openSUSE-SU-2021:0973-1 |
| openSUSE Leap 15.1 | chromium | 88.0.4324.96-lp151.2.171.1 | openSUSE-SU-2021:0166-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.22 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.21 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.20 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.19 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.17 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.16 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.15 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
| Alpine v3.14 | qt5-qtwebengine | 5.15.3_git20200401-r0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
Puliczek/CVE-2021-21123-PoC-Google-Chrome ★ 177 · Mar 22, 2021
🐱💻 👍 Google Chrome - File System Access API - vulnerabilities reported by Maciej Pulikowski | Total Bug Bounty Reward: $5.000 | CVE-2021-21123 and 5 more...
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 9
- DSA-4846-1 chromium - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:0177-1 Security update for chromium SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10681-1 chromedriver-93.0.4577.82-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0973-1 Security update for libqt5-qtwebengine SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0173-1 Security update for chromium SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0166-1 Security update for chromium SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12948-1 ungoogled-chromium-113.0.5672.92-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1016-1 Security update for libqt5-qtwebengine SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0186-1 Security update for chromium SUSE / openSUSE Security Updates · May 7, 2025