CVE catalog

CVE-2026-113679

harfbuzz: CVE-2026-113679

Severity: High · CVSS 7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Oct 20, 2026, 3:40:40 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.17% · Oct 25, 2026

HarfBuzz 8.0.0 through 14.6.0 contains an out-of-bounds write vulnerability in the experimental WebAssembly shaper because the font_glyph_to_string import has a wrong WAMR signature. Attackers can supply a crafted font whose wasm module places the output buffer near linear memory's end, writing glyph-name bytes into host memory to crash or corrupt applications.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	harfbuzz	sid	`12.3.2-2`	not affected
Debian	harfbuzz	forky	`12.3.2-2`	not affected
Debian	harfbuzz	trixie	`10.2.0-1+deb13u1`	not affected
Debian	harfbuzz	bookworm	`6.0.0+dfsg-3`	not affected
Ubuntu	harfbuzz	14.04	`0.9.19-1`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.19-1ubuntu1`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.24-2ubuntu1`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.24-2ubuntu2`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.24-2ubuntu3`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.25-1ubuntu1`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.26-3`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.26-4`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.27-1`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.27-1ubuntu1`	vulnerable
Ubuntu	harfbuzz	14.04	`0.9.27-1ubuntu1.1`	vulnerable
Ubuntu	harfbuzz	pro	`1.0.1-1build2`	vulnerable
Ubuntu	harfbuzz	pro	`1.0.1-1ubuntu0.1`	vulnerable
Ubuntu	harfbuzz	pro	`1.0.1-1ubuntu0.1+esm1`	vulnerable
Ubuntu	harfbuzz	18.04	`1.4.2-1`	vulnerable
Ubuntu	harfbuzz	18.04	`1.4.2-1build1`	vulnerable
Ubuntu	harfbuzz	18.04	`1.6.3-1build1`	vulnerable
Ubuntu	harfbuzz	18.04	`1.7.1-1`	vulnerable
Ubuntu	harfbuzz	18.04	`1.7.2-1`	vulnerable
Ubuntu	harfbuzz	18.04	`1.7.2-1ubuntu1`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.1-3`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.2-1`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.4-1`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.4-1ubuntu1`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.4-1ubuntu2`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.4-1ubuntu3`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.4-1ubuntu4`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.4-1ubuntu4.2`	vulnerable
Ubuntu	harfbuzz	20.04	`2.6.4-1ubuntu4.3`	vulnerable
Ubuntu	harfbuzz	22.04	`2.7.4-1ubuntu1`	vulnerable
Ubuntu	harfbuzz	22.04	`2.7.4-1ubuntu2`	vulnerable
Ubuntu	harfbuzz	22.04	`2.7.4-1ubuntu3`	vulnerable
Ubuntu	harfbuzz	22.04	`2.7.4-1ubuntu3.1`	vulnerable
Ubuntu	harfbuzz	22.04	`2.7.4-1ubuntu3.2`	vulnerable
Ubuntu	harfbuzz	24.04	`8.0.1-1`	vulnerable
Ubuntu	harfbuzz	24.04	`8.0.1-1build1`	vulnerable
Ubuntu	harfbuzz	24.04	`8.3.0-2`	vulnerable
Ubuntu	harfbuzz	24.04	`8.3.0-2build1`	vulnerable
Ubuntu	harfbuzz	24.04	`8.3.0-2build2`	vulnerable
Ubuntu	harfbuzz	26.10	`12.3.2-2`	vulnerable
Ubuntu	harfbuzz	26.04	`10.2.0-1`	vulnerable
Ubuntu	harfbuzz	26.04	`12.1.0-1`	vulnerable
Ubuntu	harfbuzz	26.04	`12.1.0-1build1`	vulnerable
Ubuntu	harfbuzz	26.04	`12.2.0-1`	vulnerable
Ubuntu	harfbuzz	26.04	`12.3.0-3`	vulnerable
Ubuntu	harfbuzz	26.04	`12.3.0-4`	vulnerable
Ubuntu	harfbuzz	26.04	`12.3.1-1`	vulnerable
Ubuntu	harfbuzz	26.04	`12.3.2-1`	vulnerable
Ubuntu	harfbuzz	26.04	`12.3.2-2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	harfbuzz	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	harfbuzz	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	harfbuzz	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	harfbuzz	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gir1.2-harfbuzz-0.0]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · amd64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · arm64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
[libharfbuzz0b]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · amd64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · arm64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
[libharfbuzz-bin]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · amd64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · arm64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
[libharfbuzz-dev]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · amd64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · arm64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
[libharfbuzz-doc]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · all · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · all · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
[libharfbuzz-gobject0]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · amd64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · arm64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
[libharfbuzz-icu0]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · amd64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · arm64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
[libharfbuzz-subset0]Affected
Source package: [harfbuzz]
Details (2)
- 6.0.0+dfsg-3 · amd64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12
- 6.0.0+dfsg-3 · arm64 · bookworm
  Affected
  dsa · harfbuzz · debian · bookworm; dsa · harfbuzz · debian · 12

[Debian 13 (Trixie)]

[gir1.2-harfbuzz-0.0]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz0b]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz-bin]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz-cairo0]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz-dev]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz-doc]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · all · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · all · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz-gobject0]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz-icu0]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
[libharfbuzz-subset0]Affected
Source package: [harfbuzz]
Details (2)
- 10.2.0-1+deb13u1 · amd64 · trixie
  Affected
  dsa · harfbuzz · debian · 13
- 10.2.0-1+deb13u1 · arm64 · trixie
  Affected
  dsa · harfbuzz · debian · 13

Observed: Oct 25, 2026, 2:49:39 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]