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NVD / CVE Program· CNA VulDB

CVE-2026-93313: Freedesktop Poppler JBIG2Stream.cc readCodeTableSeg integer overflow

Noroxi assessment

Priority: Monitor (action score 8/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No special conditions are required; it is repeatable.
  • Fixed version: poppler (Debian:14) 26.07.0-3; poppler (openSUSE:Tumbleweed) 26.09.0-2.1; poppler (Red Hat:hummingbird:1) 0:26.08.0-1.1.hum1.
  • Severity is disputed: the assigning authority (CNA) scores it 5.3, NVD 2.1.

Low priority for now. Upgrade to poppler (Debian:14) 26.07.0-3; poppler (openSUSE:Tumbleweed) 26.09.0-2.1; poppler (Red Hat:hummingbird:1) 0:26.08.0-1.1.hum1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A vulnerability was found in Freedesktop Poppler 26.07.0. The impacted element is the function JBIG2Stream::readCodeTableSeg of the file poppler/JBIG2Stream.cc. Performing a manipulation results in integer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. The patch is named eb87cf711563894649bd0c365baa479401dc6d51. To fix this issue, it is recommended to deploy a patch.

LowCVSS 2.1 · v4.0—No exploit Fix available
Published
Sep 17, 2026
Updated
Sep 18, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

8

Monitor

Low priority for now.

CVSS
8 / 40 · 2.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulDB
5.3
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-93313

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • Freedesktop Poppler

    • 26.07.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12popplerfrom 0—
Debian:14popplerbefore 26.07.0-326.07.0-3
openSUSE:Tumbleweedpopplerbefore 26.09.0-2.126.09.0-2.1
Red Hat:hummingbird:1popplerbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-cppbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-cpp-develbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-develbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-glibbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-glib-develbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-glib-docbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-qt6before 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-qt6-develbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1
Red Hat:hummingbird:1poppler-utilsbefore 0:26.08.0-1.1.hum10:26.08.0-1.1.hum1

Same product

freedesktop: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-9631Poppler 0.74.0 has a heap-based buffer over-read in the CairoRescaleBox.cc downsample_row_box_filter function.
    40Plan
  • CVE-2018-21009Poppler before 0.66.0 has an integer overflow in Parser::makeStream in Parser.cc.
    36Monitor
  • CVE-2019-12293In Poppler through 0.76.1, there is a heap-based buffer over-read in JPXStream::init in JPEG2000Stream.cc via data with inconsistent heights
    36Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-93311Sep 17, 2026 · Freedesktop Poppler SampledFunction Function.cc integer overflow
    8Monitor
  • ← EarlierCVE-2026-93312Sep 17, 2026 · Freedesktop Poppler JBIG2Stream.cc rewind null pointer dereference
    8Monitor
  • Later →CVE-2026-93314Sep 17, 2026 · Freedesktop Poppler FoFiTrueType.cc mapCodeToGID integer overflow
    8Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:poppler26.07.0-3 · Debian:14Package registry (OSV)
opensuse:poppler26.09.0-2.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:poppler0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-cpp0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-cpp-devel0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-devel0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-glib0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-glib-devel0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-glib-doc0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-qt60:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-qt6-devel0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:poppler-utils0:26.08.0-1.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-933110 days apartFreedesktop Poppler SampledFunction Function.cc integer overflow
    8Monitor
  • CVE-2026-933140 days apartFreedesktop Poppler FoFiTrueType.cc mapCodeToGID integer overflow
    8Monitor
  • CVE-2026-10262012 days apartFreedesktop Poppler FoFiTrueType.cc cvtSfnts integer overflow
    7Monitor
  • CVE-2026-10262112 days apartFreedesktop Poppler SplashClip.cc clipToPath integer overflow
    7Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
P
Scope
X

Weakness class (CWE)

CWE-189 · Numeric Errors

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records