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CVE

CVE-2026-111497

Out-of-Bounds Write in Google Brotli Decoder
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CVE

CVE-2026-111497

Out-of-Bounds Write in Google Brotli Decoder

A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream.

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Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.2
-
4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

http://www.openwall.com/lists/oss-security/2026/10/23/25, http://www.openwall.com/lists/oss-security/2026/10/24/6, http://www.openwall.com/lists/oss-security/2026/10/26/12, http://www.openwall.com/lists/oss-security/2026/10/26/13, http://www.openwall.com/lists/oss-security/2026/10/26/16, http://www.openwall.com/lists/oss-security/2026/11/03/2, https://broccoli2shell.com, https://cert-portal.siemens.com/productcert/html/ssa-045512.html, https://cert-portal.siemens.com/productcert/html/ssa-443410.html, https://cert-portal.siemens.com/productcert/html/ssa-898633.html, https://github.com/google/brotli/releases/tag/v1.0.10, https://github.com/google/brotli/releases/tag/v1.1.1, https://github.com/google/brotli/releases/tag/v1.2.1, https://lists.debian.org/debian-lts-announce/2026/10/msg00049.html, https://patchtheplanet.org/brotli, https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-111497, https://ellio.tech/en/blog/node2shell-cve-2026-111497-rce-on-stock-nodejs-builds/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111497.json, https://github.com/advisories/GHSA-9v8h-qqgm-4m35, https://github.com/andybalholm/brotli/releases/tag/v1.2.7, https://nvd.nist.gov/vuln/detail/CVE-2026-111497, https://github.com/dotnet/announcements/issues/494, https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high, https://github.com/google/brotli, https://www.aikido.dev/blog/node2shell-nodejs-brotli-rce-cve-2026-111497

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.82641%
EPSS Percentile
0.99667%
Introduced Version
676a02057d90cd1e75ede54cdfa79d4cdb574dae,b61b1c7a3d5638bc87c43b7c5c7fa44e63623ebe,0,ffed591b0fb8f9aab50ecc28f2c765049fb28d8f,8eea3285d6bdb89f8ea34632cfe7ce1608a8f374,028fb5a23661f123017c060daa546b55cf4bde29,eed52ebb66ade45214088877b0f82855d954060d,0b3a10d4c8ba5e15429287e725d22615be896e95,1.0.3,1.1.0,1.2.0
Fix Available
33c2a9884269798192b5ecf171288f98939dbe42,6eb0d2d97489ec1b4e1584a004f5de443d97a41b,db24a98aed38a16de78cc05ca15cdd8dc2a0d92d,e2f3a7949a358af7dd901a6f9ccd6ecdd7270271,bc2e01dcf6acd5cf7d169b5f26cf89abaaeb41f1,38afee6c84fcf48c0edb2466aa4b27d287a59c30,6fa0ca8ad8092b74590eb2b4bba0398a986784d3,0:140.10.0-1.el8_10,0:1.0.6-5.el8_10,1:24.22.1-1.module+el8.10.0+25218+d9e131cb,0:3.1.14-2.module+el8.10.0+24711+b610b202,0:2021.06-6.module+el8.10.0+24711+b610b202,3:13.6.233.17-1.24.22.1.1.module+el8.10.0+25218+d9e131cb,1:11.19.1-1.24.22.1.1.module+el8.10.0+25218+d9e131cb,0:8.0.33-1.el8_10,0:8.0.133-1.el8_10,0:8.0.133-1.el9_8,0:8.0.33-1.el9_8,1:24.22.1-3.module+el9.8.0+25216+afa2a4a4,0:3.1.14-3.module+el9.8.0+24708+e71d2e1d,0:2021.06-6.module+el9.8.0+24708+e71d2e1d,1:11.19.1-1.24.22.1.3.module+el9.8.0+25216+afa2a4a4,3:13.6.233.17-1.24.22.1.3.module+el9.8.0+25216+afa2a4a4,0:1.0.9-10.el9_8.1,0:140.10.0-1.el9_7,8.0.33-1.el10_2,1.1.0-8.el10_2.1,8.0.133-1.el10_2,140.10.0-1.el10_1,140.10.0-1.el10_2,1.0.9-2+deb12u1,1.1.0-2+deb13u1,1.2.0-3ubuntu0.1,10.0.14-0ubuntu1~26.04.1,10.0.114-0ubuntu1~26.04.1,10.0.114-10.0.14-0ubuntu1~26.04.1,1.0.3-1ubuntu1.3+esm1,1.0.7-6ubuntu0.1+esm1,1.1.0-2ubuntu0.1,10.0.14-0ubuntu1~24.04.1,10.0.114-0ubuntu1~24.04.1,10.0.114-10.0.14-0ubuntu1~24.04.1,8.0.33-0ubuntu1~24.04.1,8.0.133-0ubuntu1~24.04.1,8.0.133-8.0.33-0ubuntu1~24.04.1,1.0.9-2ubuntu0.1,8.0.33-0ubuntu1~22.04.1,8.0.133-0ubuntu1~22.04.1,8.0.133-8.0.33-0ubuntu1~22.04.1,26.12.1-r0,1.2.1-r0,0,1.1.1-r0,1.0.10,1.1.1,1.2.1,0:8.0.33-1.0.1.el10_2,0:8.0.133-1.0.1.el10_2,0:1.1.0-8.0.1.el10_2,0:140.10.0-1.0.1.el10_1,0:140.12.0-1.0.1.el10_2,1:22.23.2-3.0.2.el10_2,1:10.9.8-1.22.23.2.3.0.2.el10_2,1:24.21.0-1.0.2.el10_2,2:11.19.0-1.24.21.0.1.0.2.el10_2,0:8.0.133-1.0.1.el9_8,0:8.0.33-1.0.1.el9_8,1:24.21.0-1.0.1.module+el9.8.0+91091+c060d8b4,0:3.1.14-3.module+el9.8.0+91009+5d530ccd,0:2021.06-6.module+el9.8.0+91009+5d530ccd,1:11.19.0-1.24.21.0.1.0.1.module+el9.8.0+91091+c060d8b4,3:13.6.233.17-1.24.21.0.1.0.1.module+el9.8.0+91091+c060d8b4,0:140.10.0-1.0.1.el9_7,1:24.21.0-1.0.1.module+el9.8.0+91083+7bce9ac0,1:11.19.0-1.24.21.0.1.0.1.module+el9.8.0+91083+7bce9ac0,3:13.6.233.17-1.24.21.0.1.0.1.module+el9.8.0+91083+7bce9ac0,1:22.23.2-2.0.1.module+el9.8.0+91084+6a4a26be,0:3.1.14-2.module+el9.8.0+91010+e0f4f255,0:2021.06-6.module+el9.8.0+91010+e0f4f255,1:10.9.8-1.22.23.2.2.0.1.module+el9.8.0+91084+6a4a26be,3:12.4.254.21-1.22.23.2.2.0.1.module+el9.8.0+91084+6a4a26be,0:1.0.9-10.0.1.el9_8,1:24.21.0-1.0.1.module+el8.10.0+91090+8c7726c5,0:3.1.14-2.module+el8.10.0+91054+4b1a799c,0:2021.06-6.module+el8.10.0+91054+4b1a799c,1:11.19.0-1.24.21.0.1.0.1.module+el8.10.0+91090+8c7726c5,3:13.6.233.17-1.24.21.0.1.0.1.module+el8.10.0+91090+8c7726c5,0:8.0.133-1.0.1.el8_10,0:8.0.33-1.0.1.el8_10,0:140.10.0-1.0.1.el8_10,1:22.23.2-2.0.1.module+el8.10.0+91085+97cfd505,0:3.1.14-2.module+el8.10.0+91061+02523cc0,0:2021.06-4.module+el8.10.0+91061+02523cc0,1:10.9.8-1.22.23.2.2.0.1.module+el8.10.0+91085+97cfd505,3:12.4.254.21-1.22.23.2.2.0.1.module+el8.10.0+91085+97cfd505,1:24.21.0-1.0.1.module+el8.10.0+91086+e75af208,1:11.19.0-1.24.21.0.1.0.1.module+el8.10.0+91086+e75af208,3:13.6.233.17-1.24.21.0.1.0.1.module+el8.10.0+91086+e75af208,0:1.0.6-4.0.1.el8_10,0:140.10.0-1.0.1.el7_9,1:24.22.1-1.amzn2023.0.1,3:13.6.233.17-1.24.22.1.1.amzn2023.0.1,1:11.19.1-1.24.22.1.1.amzn2023.0.1,0:1.1.0-1.amzn2023.0.2,0:8.0.133-1.amzn2023.0.1,0:8.0.33-1.amzn2023.0.1,2.338.1-r2,2.11.2-r27,3.3.2-r9,22.8.20.12-r3,23.3.19.33-r2,23.8.16.43-r3,24.3.18.10426-r2,24.8.14.10549-r2,25.3.14.10001-r2,25.8.33.10001-r2,26.3.53.10001-r1,2.77.0-r4,2.77.0-r6,3.3.3-r9,3.3.3-r6,2.52.0-r4,1.2.0-r7,0.1-r8,1.4.4-r0,1.17.18-r18,1.18.15-r0,1.19.9-r0,1.20.3-r0,1.17.18-r13,25.8.33.6-r2,26.1.12.23-r12,26.2.19.43-r11,26.3.60.2-r1,26.4.5.143-r7,26.5.7.64-r5,26.6.8.7-r3,26.7.37.6-r1,26.8.34.13-r1,26.1.12.23-r10,26.5.7.64-r4,26.6.8.7-r1,1.13.26-r2,1.8.0-r1,1.31.10-r3,1.37.5-r3,7.3.2-r1,7.3.2-r2,1.10.3-r12,10.0.113-r3,8.0.132-r2,10.0.113-r1,10.0.204-r10,10.0.303-r7,10.0.402-r2,1.8.0-r2,2.0.0-r1,1.35.13-r8,1.36.12-r0,1.37.8-r0,1.38.6-r0,1.39.3-r0,1.35.13-r4,150.0-r0,140.10.1-r0,0.15.0-r2,0.10.4-r3,25.0.4.1-r8,25.1.3-r3,25.2.4-r3,2.7.0-r48,2.4-r13,1.28.10-r3,1.29.9-r0,1.30.6-r0,1.31.2-r0,2.15.0-r11,7.6.1_git20261023-r1,1.11.5-r2,1.29.3-r1,26.6.7-r7,26.7.5-r1,26.8.1-r2,26.6.7-r11,26.7.5-r4,26.8.1-r3,8.19.18-r0,9.2.8-r29,9.3.7-r0,9.4.3-r0,0.21.0-r7,0.21.0-r3,0.21.0-r4,0.19.0-r48,2.17.2-r9,1.23.2-r3,0.8.8-r7,0.5.6-r2,2.47.0-r1,1.10.2-r24,1.11.3-r16,1.12.1-r12,1.8.2-r31,1.9.2-r33,21.06.21-r8,22.08.19-r11,23.02.16-r13,23.08.12-r10,24.02.8-r8,24.08.0-r7,21.06.21-r10,23.02.16-r12,23.08.12-r11,24.02.8-r9,12.3.0-r1,3.17.2-r1,1.12.1-r3,6.14.1-r4,2.7.3-r41,0.5.0_rc0_git20260729-r7,0.7.0-r12,0.7.0_git20260911-r4,4.7.3-r2,4.7.3-r3,2022.4.1.6-r5,2023.1.1.4-r6,2023.2.2.3-r5,2023.3.1.1-r7,2024.1.1.4-r4,2024.3.2.3-r5,2025.1.1.2-r10,2025.2.1.3-r8,2025.3.1.4-r1,2025.4.1.2-r3,2026.1.1.2-r6,2026.2.1.5-r3,2026.3.1.2-r1,0.12.3-r7,25.5.2_git20260914-r13,25.5.2_git20260914-r11,25.7.3_git20261020-r2,25.7.3_git20261019-r2,9.18-r8,9.18-r9,2.14.1-r4,2.14.1-r3,0.18.1-r11,1.8.0_git20260910-r1,26.10.0-r2,26.10.0-r3,26.10.0-r1,1.1308.3-r0,5.0.0-r47,6.0.0-r23,6.1.0-r18,6.1.0-r13,1.163.2-r1,2.21.0-r9,2.21.0-r15,0.32.0-r2,0.30.0-r1,0.31.0-r2,0.32.0-r1,4.14.9-r3,3.6.1-r32

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