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TI-2026-16934 Aliases CVE-2026-20911GHSA-rc49-6x7v-hf76

A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality…

Priority MEDIUM 50CWE-131Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-131 and the CVSS impact.

Summary

A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00641 50th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Will not fix Red Hat: no fix planned

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
LibRawLibRawCommit 0b56545; Commit d20315b—No fix listedCNA
  • LibRaw VendorLibRaw Affected Commit 0b56545; Commit d20315b Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:libraw:libraw:0.22.0:*:*:*:*:*:*:*0.22.0VulnerableLibRaw
cpe:2.3:a:libraw:libraw:0.22.1:*:*:*:*:*:*:*0.22.1VulnerableLibRaw
  • cpe:2.3:a:libraw:libraw:0.22.0:*:*:*:*:*:*:* Versions 0.22.0 Vulnerable ·LibRaw
  • cpe:2.3:a:libraw:libraw:0.22.1:*:*:*:*:*:*:* Versions 0.22.1 Vulnerable ·LibRaw

Remediation

No fixed version listed by the sources yet.

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 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Not affected: 2 products
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20911
  2. 2026-10-03 Alias added: GHSA-rc49-6x7v-hf76
  3. 2026-10-28 EPSS moved to the 50th–90th percentile

References

Exploit 2

  • TI-2026-04674 LibRaw TIFF/NEF decoders_libraw.cpp nikon_load_padded_packed_raw out-of-bounds CVSS 4.0MEDIUM 6.9
  • TI-2020-14361 Buffer Overflow vulnerability in LibRaw::stretch() function in libraw\src\postprocessing\aspect_ratio.cpp. CVSS 3.1MEDIUM 6.5
  • TI-2026-04650 LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write CVSS 4.0MEDIUM 5.3
  • TI-2015-06888 The phase_one_correct function in Libraw before 0.17.1 allows attackers to cause memory… CVSS 3.1CRITICAL 9.8
  • TI-2026-16915 Integer overflow in LibRaw CVSS 3.1CRITICAL 9.8
  • TI-2015-06887 Array index error in smal_decode_segment function in LibRaw before 0.17.1 allows… CVSS 3.1CRITICAL 9.8
See all 62 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences